soalanfaktaasas (1)

66
Duration: 5 minutes (maximum) Date: ………………… Duration: 5 minutes (maximum) Date: ………………… 1. 6 + 6 = 11. 15 - 8 = 1. 6 + 7 = 11. 15 - 6 = 2. 7 + 9 = 12. 13 - 6 = 2. 8 + 8 = 12. 17 - 9 = 3. 7 + 7 = 13. 15 - 9 = 3. 7 + 6 = 13. 14 - 8 = 4. 9 + 8 = 14. 13 - 7 = 4. 6 + 9 = 14. 13 - 7 = 5. 6 + 9 = 15. 14 - 6 = 5. 7 + 8 = 15. 14 - 6 = 6. 8 + 8 = 16. 16 - 7 = 6. 9 + 7 = 16. 15 - 7 = 7. 6 + 8 = 17. 15 - 6 = 7. 8 + 6 = 17. 17 - 8 = 8. 9 + 6 = 18. 16 - 8 = 8. 9 + 9 = 18. 14 - 7 = 9. 8 + 7 = 19. 14 - 7 = 9. 9 + 8 = 19. 16 - 9 = 10. 8 + 9 = 20. 18 - 9 = 10. 7 + 9 = 20. 12 - 6 = Exercise 1 Exercise 2

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soalan fakta asas matematik

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  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 6 = 11. 15 - 8 = 1. 6 + 7 = 11. 15 - 6 =

    2. 7 + 9 = 12. 13 - 6 = 2. 8 + 8 = 12. 17 - 9 =

    3. 7 + 7 = 13. 15 - 9 = 3. 7 + 6 = 13. 14 - 8 =

    4. 9 + 8 = 14. 13 - 7 = 4. 6 + 9 = 14. 13 - 7 =

    5. 6 + 9 = 15. 14 - 6 = 5. 7 + 8 = 15. 14 - 6 =

    6. 8 + 8 = 16. 16 - 7 = 6. 9 + 7 = 16. 15 - 7 =

    7. 6 + 8 = 17. 15 - 6 = 7. 8 + 6 = 17. 17 - 8 =

    8. 9 + 6 = 18. 16 - 8 = 8. 9 + 9 = 18. 14 - 7 =

    9. 8 + 7 = 19. 14 - 7 = 9. 9 + 8 = 19. 16 - 9 =

    10. 8 + 9 = 20. 18 - 9 = 10. 7 + 9 = 20. 12 - 6 =

    Exercise 1 Exercise 2

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 + 7 = 11. 14 - 6 = 1. 8 + 8 = 11. 14 - 8 =

    2. 6 + 8 = 12. 15 - 9 = 2. 9 + 9 = 12. 12 - 6 =

    3. 7 + 9 = 13. 14 - 7 = 3. 8 + 6 = 13. 16 - 9 =

    4. 8 + 9 = 14. 18 - 9 = 4. 9 + 7 = 14. 15 - 7 =

    5. 9 + 6 = 15. 13 - 6 = 5. 7 + 8 = 15. 17 - 8 =

    6. 9 + 8 = 16. 16 - 7 = 6. 9 + 8 = 16. 14 - 7 =

    7. 7 + 7 = 17. 15 - 8 = 7. 7 + 6 = 17. 15 - 6 =

    8. 6 + 6 = 18. 15 - 6 = 8. 6 + 9 = 18. 14 - 6 =

    9. 8 + 8 = 19. 16 - 8 = 9. 6 + 7 = 19. 17 - 9 =

    10. 6 + 9 = 20. 13 - 7 = 10. 7 + 9 = 20. 13 - 7 =

    Exercise 3 Exercise 4

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 + 7 = 11. 6 + 8 = 1. 8 + 8 = 11. 9 + 8 =

    2. 16 - 7 = 12. 15 - 9 = 2. 17 - 8 = 12. 12 - 6 =

    3. 6 + 9 = 13. 6 + 6 = 3. 8 + 6 = 13. 7 + 9 =

    4. 15 - 8 = 14. 18 - 9 = 4. 14 - 8 = 14. 15 - 7 =

    5. 9 + 6 = 15. 8 + 9 = 5. 7 + 8 = 15. 9 + 7 =

    6. 14 - 6 = 16. 15 - 6 = 6. 17 - 9 = 16. 14 - 7 =

    7. 7 + 7 = 17. 9 + 8 = 7. 7 + 6 = 17. 6 + 9 =

    8. 14 - 7 = 18. 16 - 8 = 8. 16 - 9 = 18. 14 - 6 =

    9. 8 + 8 = 19. 7 + 9 = 9. 6 + 7 = 19. 9 + 9 =

    10. 13 - 6 = 20. 13 - 7 = 10. 15 - 6 = 20. 13 - 7 =

    Exercise 5 Exercise 6

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. 42 7 = 1. 7 6 = 11. 36 6 =

    2. 9 6 = 12. 48 6 = 2. 7 9 = 12. 56 7 =

    3. 7 7 = 13. 56 8 = 3. 6 7 = 13. 72 9 =

    4. 8 8 = 14. 49 7 = 4. 9 8 = 14. 48 8 =

    5. 7 9 = 15. 54 9 = 5. 6 9 = 15. 63 9 =

    6. 9 8 = 16. 81 9 = 6. 8 8 = 16. 54 6 =

    7. 6 6 = 17. 42 6 = 7. 9 7 = 17. 49 7 =

    8. 8 9 = 18. 63 7 = 8. 8 6 = 18. 72 8 =

    9. 6 8 = 19. 54 6 = 9. 7 8 = 19. 48 6 =

    10. 8 7 = 20. 64 8 = 10. 9 9 = 20. 42 7 =

    Exercise 7 Exercise 8

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 9 = 11. 54 6 = 1. 8 8 = 11. 54 6 =

    2. 9 8 = 12. 64 8 = 2. 6 9 = 12. 49 7 =

    3. 6 6 = 13. 54 9 = 3. 8 6 = 13. 48 8 =

    4. 8 9 = 14. 81 9 = 4. 7 8 = 14. 72 9 =

    5. 6 8 = 15. 42 7 = 5. 9 9 = 15. 42 7 =

    6. 6 9 = 16. 63 7 = 6. 7 6 = 16. 36 6 =

    7. 8 7 = 17. 48 6 = 7. 7 9 = 17. 56 7 =

    8. 9 6 = 18. 42 6 = 8. 6 7 = 18. 48 6 =

    9. 7 7 = 19. 56 8 = 9. 9 8 = 19. 72 8 =

    10. 8 8 = 20. 49 7 = 10. 9 7 = 20. 63 9 =

    Exercise 9 Exercise 10

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 7 = 11. 9 6 = 1. 9 7 = 11. 8 6 =

    2. 54 6 = 12. 64 8 = 2. 48 8 = 12. 54 6 =

    3. 6 6 = 13. 8 8 = 3. 7 6 = 13. 8 8 =

    4. 56 8 = 14. 81 9 = 4. 48 6 = 14. 72 8 =

    5. 6 8 = 15. 9 8 = 5. 6 7 = 15. 9 8 =

    6. 54 9 = 16. 63 7 = 6. 72 9 = 16. 49 7 =

    7. 8 7 = 17. 7 9 = 7. 6 9 = 17. 7 9 =

    8. 42 7 = 18. 42 6 = 8. 56 7 = 18. 42 7 =

    9. 8 9 = 19. 6 9 = 9. 9 9 = 19. 7 8 =

    10. 48 6 = 20. 49 7 = 10. 63 9 = 20. 36 6 =

    Exercise 11 Exercise 12

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 7 = 11. 8 9 = 1. 8 + 8 = 11. 9 6 =

    2. 7 + 6 = 12. 6 7 = 2. 7 + 7 = 12. 7 7 =

    3. 8 + 9 = 13. 8 6 = 3. 9 + 6 = 13. 6 8 =

    4. 6 + 8 = 14. 9 8 = 4. 6 + 9 = 14. 7 9 =

    5. 8 + 7 = 15. 7 6 = 5. 9 + 8 = 15. 8 7 =

    6. 15 - 7 = 16. 56 8 = 6. 16 - 9 = 16. 64 8 =

    7. 18 - 9 = 17. 36 6 = 7. 14 - 6 = 17. 54 6 =

    8. 12 - 6 = 18. 63 7 = 8. 17 - 8 = 18. 49 7 =

    9. 15 - 8 = 19. 81 9 = 9. 13 - 7 = 19. 54 9 =

    10. 16 - 8 = 20. 48 6 = 10. 14 - 8 = 20. 63 7 =

    Exercise 13 Exercise 14

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 8 = 11. 7 6 = 1. 9 + 8 = 11. 7 8 =

    2. 6 + 6 = 12. 6 9 = 2. 6 + 7 = 12. 6 6 =

    3. 9 + 9 = 13. 8 8 = 3. 8 + 6 = 13. 8 7 =

    4. 8 + 7 = 14. 9 7 = 4. 7 + 9 = 14. 9 9 =

    5. 9 + 8 = 15. 7 8 = 5. 8 + 7 = 15. 6 8 =

    6. 14 - 7 = 16. 63 9 = 6. 16 - 7 = 16. 42 6 =

    7. 15 - 9 = 17. 42 7 = 7. 17 - 9 = 17. 72 9 =

    8. 16 - 8 = 18. 48 6 = 8. 14 - 8 = 18. 63 7 =

    9. 15 - 6 = 19. 72 8 = 9. 13 - 6 = 19. 48 8 =

    10. 17 - 9 = 20. 64 8 = 10. 15 - 6 = 20. 56 7 =

    Exercise 15 Exercise 16

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 6 = 11. 8 8 = 1. 6 + 7 = 11. 7 8 =

    2. 9 + 7 = 12. 8 6 = 2. 9 + 6 = 12. 9 6 =

    3. 6 + 8 = 13. 9 9 = 3. 8 + 7 = 13. 8 9 =

    4. 9 + 9 = 14. 7 7 = 4. 7 + 9 = 14. 6 7 =

    5. 6 + 9 = 15. 8 9 = 5. 8 + 6 = 15. 7 9 =

    6. 16 - 9 = 16. 72 9 = 6. 12 - 6 = 16. 36 6 =

    7. 13 - 6 = 17. 42 7 = 7. 15 - 9 = 17. 81 9 =

    8. 14 - 8 = 18. 56 8 = 8. 17 - 8 = 18. 63 7 =

    9. 13 - 7 = 19. 54 6 = 9. 16 - 7 = 19. 72 8 =

    10. 17 - 8 = 20. 49 7 = 10. 15 - 8 = 20. 64 8 =

    Exercise 17 Exercise 18

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 6 = 11. 8 7 = 1. 6 + 9 = 11. 9 7 =

    2. 9 + 8 = 12. 6 8 = 2. 8 + 8 = 12. 6 6 =

    3. 8 + 6 = 13. 6 9 = 3. 7 + 7 = 13. 7 9 =

    4. 7 + 8 = 14. 7 6 = 4. 8 + 9 = 14. 9 8 =

    5. 6 + 9 = 15. 9 7 = 5. 6 + 7 = 15. 6 9 =

    6. 16 - 8 = 16. 63 9 = 6. 15 - 6 = 16. 48 6 =

    7. 15 - 7 = 17. 42 6 = 7. 18 - 9 = 17. 56 7 =

    8. 17 - 9 = 18. 48 8 = 8. 15 - 8 = 18. 64 8 =

    9. 14 - 6 = 19. 49 7 = 9. 14 - 7 = 19. 54 9 =

    10. 18 - 9 = 20. 54 9 = 10. 17 - 8 = 20. 63 7 =

    Exercise 19 Exercise 20

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 + 9 = 11. 12 - 6 = 1. 9 + 6 = 11. 16 - 9 =

    2. 6 + 8 = 12. 15 - 8 = 2. 6 + 9 = 12. 14 - 6 =

    3. 15 - 7 = 13. 8 9 = 3. 17 - 8 = 13. 9 6 =

    4. 18 - 9 = 14. 6 7 = 4. 13 - 7 = 14. 7 7 =

    5. 8 6 = 15. 56 7 = 5. 6 8 = 15. 49 7 =

    6. 9 8 = 16. 36 6 = 6. 7 9 = 16. 54 9 =

    7. 56 8 = 17. 9 + 6 = 7. 64 8 = 17. 9 + 7 =

    8. 81 9 = 18. 17 - 8 = 8. 54 6 = 18. 15 - 9 =

    9. 9 + 7 = 19. 6 6 = 9. 8 + 8 = 19. 8 6 =

    10. 7 + 6 = 20. 72 9 = 10. 7 + 7 = 20. 63 7 =

    Exercise 21 Exercise 22

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 9 = 11. 14 - 7 = 1. 9 + 8 = 11. 16 - 7 =

    2. 8 + 7 = 12. 15 - 9 = 2. 6 + 7 = 12. 17 - 9 =

    3. 15 - 6 = 13. 8 8 = 3. 14 - 8 = 13. 7 8 =

    4. 16 - 8 = 14. 9 7 = 4. 13 - 6 = 14. 6 6 =

    5. 7 6 = 15. 63 9 = 5. 8 7 = 15. 63 7 =

    6. 6 9 = 16. 42 7 = 6. 9 9 = 16. 48 8 =

    7. 48 6 = 17. 9 + 8 = 7. 42 6 = 17. 8 + 7 =

    8. 72 8 = 18. 17 - 9 = 8. 72 9 = 18. 15 - 6 =

    9. 7 + 8 = 19. 7 8 = 9. 8 + 6 = 19. 6 8 =

    10. 6 + 6 = 20. 64 8 = 10. 7 + 9 = 20. 56 7 =

    Exercise 23 Exercise 24

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 8 = 11. 8 8 = 1. 8 + 6 = 11. 9 6 =

    2. 13 - 6 = 12. 42 7 = 2. 16 - 7 = 12. 81 9 =

    3. 8 6 = 13. 6 + 6 = 3. 8 9 = 13. 9 + 6 =

    4. 72 9 = 14. 13 - 7 = 4. 63 7 = 14. 12 - 6 =

    5. 9 + 7 = 15. 7 7 = 5. 6 + 7 = 15. 7 8 =

    6. 14 - 8 = 16. 54 6 = 6. 15 - 9 = 16. 72 8 =

    7. 9 9 = 17. 6 + 9 = 7. 6 7 = 17. 7 + 9 =

    8. 56 8 = 18. 17 - 8 = 8. 36 6 = 18. 15 - 8 =

    9. 9 + 9 = 19. 8 9 = 9. 8 + 7 = 19. 7 9 =

    10. 16 - 9 = 20. 49 7 = 10. 17 - 8 = 20. 64 8 =

    Exercise 25 Exercise 26

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 8 = 11. 7 6 = 1. 8 + 9 = 11. 7 9 =

    2. 16 - 8 = 12. 42 6 = 2. 15 - 8 = 12. 48 6 =

    3. 6 8 = 13. 8 + 6 = 3. 6 6 = 13. 6 + 9 =

    4. 48 8 = 14. 15 - 7 = 4. 64 8 = 14. 15 - 6 =

    5. 9 + 8 = 15. 6 9 = 5. 7 + 7 = 15. 9 8 =

    6. 17 - 9 = 16. 63 9 = 6. 18 - 9 = 16. 54 9 =

    7. 8 7 = 17. 6 + 9 = 7. 9 7 = 17. 6 + 7 =

    8. 49 7 = 18. 18 - 7 = 8. 56 7 = 18. 17 - 8 =

    9. 7 + 6 = 19. 9 7 = 9. 8 + 8 = 19. 6 9 =

    10. 14 - 6 = 20. 54 8 = 10. 14 - 7 = 20. 63 7 =

    Exercise 27 Exercise 28

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 56 8 = 11. 6 + 8 = 1. 15 - 8 = 11. 12 - 6 =

    2. 9 + 9 = 12. 13 - 6 = 2. 7 9 = 12. 7 8 =

    3. 16 - 9 = 13. 8 6 = 3. 64 8 = 13. 72 8 =

    4. 8 9 = 14. 9 + 7 = 4. 15 - 9 = 14. 7 + 9 =

    5. 6 + 9 = 15. 14 - 8 = 5. 6 7 = 15. 9 6 =

    6. 49 7 = 16. 9 9 = 6. 36 6 = 16. 16 - 7 =

    7. 8 8 = 17. 17 - 8 = 7. 8 + 7 = 17. 8 9 =

    8. 42 7 = 18. 72 9 = 8. 17 - 8 = 18. 8 + 6 =

    9. 6 + 6 = 19. 7 7 = 9. 63 7 = 19. 81 9 =

    10. 13 - 7 = 20. 54 6 = 10. 6 + 7 = 20. 9 + 6 =

    Exercise 29 Exercise 30

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. 8 7 = 1. 18 - 9 = 11. 8 + 9 =

    2. 63 9 = 12. 9 + 8 = 2. 9 7 = 12. 15 - 8 =

    3. 7 + 6 = 13. 17 - 9 = 3. 56 7 = 13. 6 6 =

    4. 49 7 = 14. 48 8 = 4. 8 + 8 = 14. 17 - 8 =

    5. 7 + 8 = 15. 9 7 = 5. 14 - 7 = 15. 6 9 =

    6. 16 - 8 = 16. 14 - 6 = 6. 9 8 = 16. 63 7 =

    7. 6 8 = 17. 6 + 9 = 7. 54 9 = 17. 7 9 =

    8. 42 6 = 18. 18 - 9 = 8. 6 + 7 = 18. 48 6 =

    9. 8 + 6 = 19. 54 9 = 9. 64 8 = 19. 6 + 9 =

    10. 15 - 7 = 20. 7 6 = 10. 7 + 7 = 20. 15 - 6 =

    Exercise 31 Exercise 32

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 7 = 11. 42 7 = 1. 9 6 = 11. 8 + 7 =

    2. 54 6 = 12. 6 + 6 = 2. 81 9 = 12. 17 - 8 =

    3. 8 6 = 13. 13 - 7 = 3. 9 + 6 = 13. 63 7 =

    4. 9 + 7 = 14. 56 8 = 4. 15 - 9 = 14. 7 9 =

    5. 14 - 8 = 15. 9 + 9 = 5. 6 7 = 15. 8 + 6 =

    6. 49 7 = 16. 17 - 8 = 6. 36 6 = 16. 16 - 7 =

    7. 8 9 = 17. 6 + 8 = 7. 12 - 6 = 17. 8 9 =

    8. 6 + 9 = 18. 9 9 = 8. 7 8 = 18. 15 - 8 =

    9. 16 - 9 = 19. 13 - 6 = 9. 72 8 = 19. 6 + 7 =

    10. 8 8 = 20. 72 9 = 10. 7 + 9 = 20. 64 8 =

    Exercise 33 Exercise 34

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 8 = 11. 6 9 = 1. 7 9 = 11. 9 8 =

    2. 42 6 = 12. 63 9 = 2. 48 6 = 12. 6 + 7 =

    3. 15 - 7 = 13. 14 - 6 = 3. 6 + 9 = 13. 63 7 =

    4. 7 6 = 14. 7 + 6 = 4. 56 7 = 14. 8 + 9 =

    5. 7 + 8 = 15. 18 - 9 = 5. 14 - 7 = 15. 15 - 8 =

    6. 16 - 8 = 16. 54 9 = 6. 7 + 7 = 16. 6 6 =

    7. 8 + 6 = 17. 6 + 9 = 7. 9 7 = 17. 17 - 8 =

    8. 49 7 = 18. 9 7 = 8. 8 + 8 = 18. 54 9 =

    9. 17 - 9 = 19. 48 8 = 9. 64 8 = 19. 6 9 =

    10. 6 8 = 20. 8 7 = 10. 18 - 9 = 20. 15 - 6 =

    Exercise 35 Exercise 36

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 6 = 11. 7 8 = 1. 6 + 6 = 11. 56 8 =

    2. 6 8 = 12. 16 - 7 = 2. 15 - 7 = 12. 7 + 9 =

    3. 14 - 7 = 13. 8 9 = 3. 9 9 = 13. 63 9 =

    4. 42 6 = 14. 15 - 6 = 4. 48 6 = 14. 8 6 =

    5. 9 7 = 15. 48 8 = 5. 9 + 8 = 15. 16 - 9 =

    6. 16 - 8 = 16. 7 + 7 = 6. 6 7 = 16. 8 + 7 =

    7. 72 9 = 17. 15 - 9 = 7. 81 9 = 17. 7 8 =

    8. 8 + 6 = 18. 8 + 8 = 8. 16 - 7 = 18. 12 - 6 =

    9. 81 9 = 19. 63 7 = 9. 9 8 = 19. 42 7 =

    10. 6 + 9 = 20. 7 6 = 10. 17 - 8 = 20. 9 + 6 =

    Exercise 37 Exercise 38

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 6 = 11. 64 8 = 1. 8 + 6 = 11. 36 6 =

    2. 8 8 = 12. 13 - 6 = 2. 7 9 = 12. 9 7 =

    3. 14 - 8 = 13. 72 9 = 3. 13 - 7 = 13. 7 + 8 =

    4. 49 7 = 14. 7 7 = 4. 56 7 = 14. 7 8 =

    5. 9 6 = 15. 6 + 8 = 5. 6 6 = 15. 63 9 =

    6. 16 - 7 = 16. 9 + 7 = 6. 15 - 8 = 16. 18 - 9 =

    7. 54 9 = 17. 17 - 9 = 7. 72 8 = 17. 6 + 7 =

    8. 14 - 7 = 18. 6 9 = 8. 7 + 6 = 18. 9 8 =

    9. 7 8 = 19. 54 6 = 9. 54 9 = 19. 14 - 6 =

    10. 8 + 9 = 20. 8 + 6 = 10. 9 + 9 = 20. 8 7 =

    Exercise 39 Exercise 40

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 72 9 = 11. 7 8 = 1. 8 + 7 = 11. 9 9 =

    2. 8 + 6 = 12. 16 - 7 = 2. 7 8 = 12. 15 - 7 =

    3. 81 9 = 13. 63 7 = 3. 12 - 6 = 13. 81 9 =

    4. 6 + 9 = 14. 7 + 7 = 4. 42 7 = 14. 16 - 7 =

    5. 9 + 6 = 15. 8 + 8 = 5. 9 + 6 = 15. 9 8 =

    6. 6 8 = 16. 15 - 6 = 6. 56 8 = 16. 17 - 8 =

    7. 14 - 7 = 17. 7 6 = 7. 7 + 9 = 17. 6 + 6 =

    8. 42 6 = 18. 15 - 9 = 8. 63 9 = 18. 6 7 =

    9. 9 7 = 19. 48 8 = 9. 8 6 = 19. 9 + 8 =

    10. 16 - 8 = 20. 8 9 = 10. 16 - 9 = 20. 48 6 =

    Exercise 41 Exercise 42

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 72 9 = 11. 14 - 7 = 1. 72 8 = 11. 14 - 6 =

    2. 17 - 9 = 12. 7 8 = 2. 9 + 9 = 12. 8 7 =

    3. 6 + 8 = 13. 8 + 9 = 3. 54 9 = 13. 7 + 6 =

    4. 64 8 = 14. 54 9 = 4. 15 - 8 = 14. 18 - 9 =

    5. 13 - 6 = 15. 14 - 8 = 5. 6 + 7 = 15. 56 7 =

    6. 7 7 = 16. 6 9 = 6. 9 8 = 16. 6 6 =

    7. 49 7 = 17. 7 + 6 = 7. 36 6 = 17. 63 9 =

    8. 9 6 = 18. 8 8 = 8. 7 8 = 18. 8 + 6 =

    9. 16 - 7 = 19. 54 6 = 9. 7 + 8 = 19. 7 9 =

    10. 9 + 7 = 20. 8 + 6 = 10. 9 7 = 20. 13 - 7 =

    Exercise 43 Exercise 44

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 15 - 6 = 11. 9 7 = 1. 9 8 = 11. 42 7 =

    2. 7 6 = 12. 16 - 8 = 2. 17 - 8 = 12. 9 + 6 =

    3. 16 - 7 = 13. 9 + 6 = 3. 9 9 = 13. 56 8 =

    4. 6 8 = 14. 8 9 = 4. 15 - 7 = 14. 7 + 9 =

    5. 14 - 7 = 15. 72 9 = 5. 9 + 8 = 15. 16 - 9 =

    6. 42 6 = 16. 8 + 6 = 6. 48 6 = 16. 8 6 =

    7. 8 + 8 = 17. 7 = 56 7. 6 + 6 = 17. 63 = 7

    8. 63 7 = 18. 15 - = 6 8. 6 7 = 18. 8 + = 15

    9. 7 + 7 = 19. 81 = 9 9. 81 9 = 19. 7 = 56

    10. 48 8 = 20. 6 + = 15 10. 16 - 7 = 20. 12 - = 6

    Exercise 45 Exercise 46

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 64 8 = 11. 72 9 = 1. 9 8 = 11. 8 + 6 =

    2. 13 - 6 = 12. 17 - 9 = 2. 18 - 9 = 12. 7 9 =

    3. 9 + 7 = 13. 6 + 8 = 3. 56 7 = 13. 13 - 7 =

    4. 49 7 = 14. 14 - 7 = 4. 6 6 = 14. 36 6 =

    5. 7 7 = 15. 8 8 = 5. 72 8 = 15. 14 - 6 =

    6. 14 - 8 = 16. 54 6 = 6. 7 + 6 = 16. 8 7 =

    7. 7 + 6 = 17. 8 + = 14 7. 54 9 = 17. 15 - = 7

    8. 7 8 = 18. 9 = 54 8. 9 + 9 = 18. 6 + = 13

    9. 8 + 9 = 19. 16 - = 9 9. 9 7 = 19. 7 = 56

    10. 6 9 = 20. 54 = 6 10. 7 + 8 = 20. 63 = 7

    Exercise 47 Exercise 48

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 8 = 11. 14 - 7 = 1. 8 + 7 = 11. 6 7 =

    2. 8 + 8 = 12. 42 6 = 2. 42 7 = 12. 81 9 =

    3. 81 9 = 13. 16 - 7 = 3. 12 - 6 = 13. 16 - 7 =

    4. 6 + 9 = 14. 7 6 = 4. 7 + 9 = 14. 9 8 =

    5. 63 7 = 15. 16 - 8 = 5. 16 - 9 = 15. 17 - 8 =

    6. 7 + 7 = 16. 6 8 = 6. 8 6 = 16. 6 + 6 =

    7. 15 - 9 = 17. 15 - = 9 7. 63 9 = 17. 15 - = 8

    8. 8 9 = 18. 9 = 63 8. 7 8 = 18. 9 + = 17

    9. 72 9 = 19. 48 = 6 9. 9 + 6 = 19. 48 = 8

    10. 8 + 6 = 20. 9 + = 15 10. 56 8 = 20. 9 = 81

    Exercise 49 Exercise 50

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 + 6 = 11. 7 7 = 1. 13 - 7 = 11. 9 7 =

    2. 9 6 = 12. 13 - 6 = 2. 36 6 = 12. 7 + 8 =

    3. 9 + 7 = 13. 7 + 6 = 3. 14 - 6 = 13. 7 8 =

    4. 7 8 = 14. 54 9 = 4. 8 7 = 14. 63 9 =

    5. 8 + 9 = 15. 72 9 = 5. 7 + 6 = 15. 8 + 6 =

    6. 16 - 7 = 16. 17 - 9 = 6. 54 9 = 16. 7 9 =

    7. 64 8 = 17. 6 + = 14 7. 15 - 8 = 17. 9 + = 18

    8. 6 9 = 18. 14 - = 7 8. 6 + 7 = 18. 56 = 8

    9. 14 - 8 = 19. 8 = 64 9. 6 6 = 19. 9 = 72

    10. 49 7 = 20. 54 = 9 10. 72 8 = 20. 18 - = 9

    Exercise 51 Exercise 52

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 36 6 = 11. 8 6 = 1. 9 7 = 11. 12 - 6 =

    2. 15 - 9 = 12. 15 - 7 = 2. 63 9 = 12. 7 + 8 =

    3. 7 + 7 = 13. 7 8 = 3. 14 - 7 = 13. 13 - 6 =

    4. 42 7 = 14. 54 6 = 4. 6 9 = 14. 7 6 =

    5. 6 8 = 15. 6 + 6 = 5. 48 8 = 15. 63 7 =

    6. 72 9 = 16. 17 - 8 = 6. 8 + 9 = 16. 9 8 =

    7. 8 + 9 = 17. 13 - = 7 7. 15 - 8 = 17. 9 + = 15

    8. 7 9 = 18. 9 + = 18 8. 6 + 7 = 18. 18 - = 9

    9. 14 - 7 = 19. 56 = 7 9. 54 9 = 19. 8 = 56

    10. 8 + 8 = 20. 9 = 63 10. 16 - 8 = 20. 48 = 8

    Exercise 53 Exercise 54

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 81 9 = 11. 6 + 6 = 1. 9 8 = 11. 14 - 6 =

    2. 7 + 9 = 12. 15 - 8 = 2. 16 - 9 = 12. 81 9 =

    3. 7 7 = 13. 54 9 = 3. 49 7 = 13. 6 + 9 =

    4. 13 - 7 = 14. 6 6 = 4. 6 7 = 14. 9 6 =

    5. 6 + 8 = 15. 8 + 6 = 5. 14 - 8 = 15. 16 - 7 =

    6. 17 - 9 = 16. 72 8 = 6. 8 9 = 16. 9 + 8 =

    7. 42 6 = 17. 9 + = 16 7. 13 - 7 = 17. 7 + = 13

    8. 6 8 = 18. 9 = 81 8. 48 6 = 18. 17 - = 8

    9. 16 - 7 = 19. 56 = 8 9. 8 + 7 = 19. 7 = 56

    10. 8 8 = 20. 15 - = 9 10. 64 8 = 20. 36 = 6

    Exercise 55 Exercise 56

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 6 = 11. 7 9 = 1. 8 + 9 = 11. 9 8 =

    2. 56 8 = 12. 13 - 6 = 2. 15 - 8 = 12. 14 - 7 =

    3. 15 - 9 = 13. 9 + 9 = 3. 6 + 7 = 13. 48 6 =

    4. 54 6 = 14. 15 - 7 = 4. 54 9 = 14. 8 7 =

    5. 9 7 = 15. 6 + 6 = 5. 16 - 8 = 15. 9 + 6 =

    6. 72 9 = 16. 36 6 = 6. 9 7 = 16. 18 - 9 =

    7. 8 + 9 = 17. 17 - = 9 7. 63 9 = 17. 7 + = 15

    8. 7 8 = 18. 7 + = 14 8. 7 6 = 18. 6 = 54

    9. 14 - 7 = 19. 42 = 6 9. 13 - 6 = 19. 12 - = 6

    10. 8 + 8 = 20. 6 = 48 10. 48 8 = 20. 63 = 9

    Exercise 57 Exercise 58

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 8 = 11. 17 - 9 = 1. 14 - 8 = 11. 8 9 =

    2. 42 6 = 12. 6 + 6 = 2. 7 + 6 = 12. 13 - 7 =

    3. 9 9 = 13. 6 8 = 3. 81 9 = 13. 48 6 =

    4. 56 7 = 14. 16 - 7 = 4. 8 + 7 = 14. 17 - 9 =

    5. 6 6 = 15. 8 8 = 5. 36 6 = 15. 64 8 =

    6. 8 + 6 = 16. 81 9 = 6. 14 - 6 = 16. 9 8 =

    7. 15 - 8 = 17. 7 + = 16 7. 7 8 = 17. 16 - = 7

    8. 54 9 = 18. 7 = 49 8. 6 + 9 = 18. 49 = 7

    9. 15 - 6 = 19. 13 - = 6 9. 9 6 = 19. 6 = 42

    10. 9 + 7 = 20. 72 = 9 10. 16 - 7 = 20. 9 + = 17

    Exercise 59 Exercise 60

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 14 - 7 = 11. 6 8 = 1. 8 7 = 11. 48 8 =

    2. 8 + 8 = 12. 9 + 9 = 2. 12 - 6 = 12. 7 6 =

    3. 54 6 = 13. 15 - 7 = 3. 63 9 = 13. 15 - 8 =

    4. 9 7 = 14. 6 + 6 = 4. 14 - 7 = 14. 9 + 6 =

    5. 72 9 = 15. 36 6 = 5. 6 + 7 = 15. 63 7 =

    6. 8 6 = 16. 17 - 8 = 6. 13 - 6 = 16. 9 8 =

    7. 56 8 = 17. 8 + = 17 7. 7 + 8 = 17. 8 + = 17

    8. 15 - 9 = 18. 8 = 56 8. 48 6 = 18. 54 = 6

    9. 7 9 = 19. 13 - = 7 9. 18 - 9 = 19. 16 - = 8

    10. 7 + 7 = 20. 42 = 6 10. 6 9 = 20. 9 = 63

    Exercise 61 Exercise 62

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 8 = 11. 56 7 = 1. 17 - 9 = 11. 6 + 9 =

    2. 81 9 = 12. 6 6 = 2. 64 8 = 12. 9 6 =

    3. 7 + 9 = 13. 72 8 = 3. 7 + 6 = 13. 16 - 7 =

    4. 15 - 6 = 14. 17 - 9 = 4. 36 6 = 14. 8 9 =

    5. 9 + 7 = 15. 9 9 = 5. 14 - 6 = 15. 49 7 =

    6. 13 - 7 = 16. 8 + 6 = 6. 7 8 = 16. 16 - 9 =

    7. 42 6 = 17. 6 + = 14 7. 9 + 8 = 17. 8 + = 15

    8. 16 - 7 = 18. 7 = 49 8. 9 8 = 18. 13 - = 6

    9. 6 + 6 = 19. 15 - = 7 9. 81 9 = 19. 48 = 8

    10. 6 8 = 20. 54 = 6 10. 14 - 8 = 20. 6 = 42

    Exercise 63 Exercise 64

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 7 = 11. 72 9 = 1. 13 - 6 = 11. 14 - 7 =

    2. 13 - 6 = 12. 8 6 = 2. 54 9 = 12. 6 + 7 =

    3. 42 7 = 13. 9 + 9 = 3. 8 + 9 = 13. 63 7 =

    4. 8 + 8 = 14. 14 - 7 = 4. 8 7 = 14. 9 8 =

    5. 7 9 = 15. 36 6 = 5. 9 + 6 = 15. 48 8 =

    6. 15 - 9 = 16. 17 - 8 = 6. 63 9 = 16. 15 - 8 =

    7. 6 + 6 = 17. 6 = 48 7. 16 - 8 = 17. 7 + = 15

    8. 7 8 = 18. 15 - = 8 8. 9 7 = 18. 7 = 42

    9. 54 6 = 19. 56 = 7 9. 12 - 6 = 19. 48 = 8

    10. 9 7 = 20. 8 + = 17 10. 6 9 = 20. 18 - = 9

    Exercise 65 Exercise 66

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 6 = 11. 13 - 7 = 1. 9 6 = 11. 9 8 =

    2. 6 8 = 12. 6 + 8 = 2. 16 - 7 = 12. 36 6 =

    3. 42 6 = 13. 56 7 = 3. 8 9 = 13. 6 + 9 =

    4. 17 - 9 = 14. 6 6 = 4. 49 7 = 14. 17 - 9 =

    5. 8 8 = 15. 16 - 7 = 5. 7 8 = 15. 64 8 =

    6. 81 9 = 16. 8 + 6 = 6. 9 + 8 = 16. 14 - 6 =

    7. 7 + 9 = 17. 9 = 81 7. 14 - 8 = 17. 81 = 9

    8. 7 7 = 18. 15 - = 9 8. 7 + 6 = 18. 6 = 42

    9. 15 - 8 = 19. 9 + = 16 9. 13 - 7 = 19. 8 + = 15

    10. 54 9 = 20. 72 = 9 10. 48 6 = 20. 15 - = 6

    Exercise 67 Exercise 68

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 64 8 = 11. 42 6 = 1. 6 + 6 = 11. 36 6 =

    2. 14 - 8 = 12. 9 8 = 2. 7 7 = 12. 7 + 9 =

    3. 8 + 7 = 13. 72 9 = 3. 63 9 = 13. 13 - 7 =

    4. 14 - 7 = 14. 18 - 9 = 4. 8 6 = 14. 9 9 =

    5. 7 6 = 15. 8 9 = 5. 9 + 6 = 15. 15 - 8 =

    6. 6 + 9 = 16. 9 + 6 = 6. 15 - 9 = 16. 72 8 =

    7. 16 - 7 = 17. 9 = 9 7. 8 + 8 = 17. + 7 = 16

    8. 6 7 = 18. - 6 = 8 8. 42 7 = 18. 8 = 72

    9. 63 7 = 19. + 8 = 15 9. 6 8 = 19. - 6 = 9

    10. 15 - 6 = 20. 9 = 54 10. 15 - 7 = 20. 9 = 6

    Exercise 69 Exercise 70

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 6 = 11. 16 - 9 = 1. 6 6 = 11. 7 + 7 =

    2. 49 7 = 12. 7 8 = 2. 6 + 8 = 12. 9 6 =

    3. 17 - 9 = 13. 56 8 = 3. 56 7 = 13. 9 + 9 =

    4. 8 + 9 = 14. 15 - 9 = 4. 13 - 7 = 14. 81 9 =

    5. 48 6 = 15. 8 + 6 = 5. 42 7 = 15. 13 - 6 =

    6. 9 + 8 = 16. 6 9 = 6. 17 - 9 = 16. 7 9 =

    7. 12 - 6 = 17. - 6 = 9 7. 54 6 = 17. 8 = 6

    8. 8 7 = 18. 9 = 8 8. 16 - 8 = 18. 7 = 63

    9. 16 - 8 = 19. 6 = 54 9. 8 + 6 = 19. - 8 = 9

    10. 42 7 = 20. + 7 = 13 10. 8 8 = 20. + 9 = 16

    Exercise 71 Exercise 72

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 6 = 11. 6 + 9 = 1. 72 8 = 11. 48 8 =

    2. 16 - 7 = 12. 14 - 6 = 2. 9 + 7 = 12. 15 - 9 =

    3. 6 9 = 13. 6 7 = 3. 9 8 = 13. 42 6 =

    4. 7 + 8 = 14. 63 7 = 4. 8 + 8 = 14. 6 + 6 =

    5. 9 8 = 15. 15 - 6 = 5. 63 9 = 15. 6 8 =

    6. 36 6 = 16. 64 8 = 6. 8 6 = 16. 15 - 7 =

    7. 14 - 7 = 17. 6 = 42 7. 7 + 9 = 17. + 6 = 15

    8. 72 8 = 18. + 7 = 15 8. 13 - 7 = 18. 7 = 49

    9. 18 - 9 = 19. 9 = 6 9. 9 9 = 19. 9 = 9

    10. 8 9 = 20. - 8 = 6 10. 15 - 8 = 20. - 6 = 9

    Exercise 73 Exercise 74

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. 49 7 = 1. 13 - 6 = 11. 42 7 =

    2. 16 - 7 = 12. 12 - 6 = 2. 7 + 7 = 12. 17 - 9 =

    3. 72 9 = 13. 8 7 = 3. 56 8 = 13. 36 6 =

    4. 9 6 = 14. 9 + 8 = 4. 9 7 = 14. 7 9 =

    5. 6 + 7 = 15. 64 8 = 5. 16 - 8 = 15. 8 + 6 =

    6. 15 - 9 = 16. 16 - 9 = 6. 7 + 9 = 16. 8 8 =

    7. 7 + 6 = 17. 8 = 56 7. 6 6 = 17. - 8 = 9

    8. 17 - 9 = 18. 7 = 6 8. 6 + 8 = 18. 6 = 54

    9. 8 + 9 = 19. - 8 = 8 9. 63 7 = 19. + 9 = 18

    10. 48 6 = 20. + 6 = 14 10. 13 - 7 = 20. 9 = 6

    Exercise 75 Exercise 76

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 18 - 9 = 11. 8 + 7 = 1. 42 6 = 11. 8 6 =

    2. 8 9 = 12. 63 9 = 2. 7 + 9 = 12. 49 7 =

    3. 54 6 = 13. 6 7 = 3. 15 - 9 = 13. 6 8 =

    4. 14 - 7 = 14. 56 7 = 4. 9 9 = 14. 6 + 6 =

    5. 72 8 = 15. 9 8 = 5. 9 + 7 = 15. 15 - 6 =

    6. 14 - 6 = 16. 14 - 8 = 6. 13 - 7 = 16. 56 8 =

    7. 7 + 8 = 17. + 9 = 15 7. 9 8 = 17. - 7 = 9

    8. 6 9 = 18. - 6 = 9 8. 8 + 8 = 18. 9 = 8

    9. 9 + 6 = 19. 8 = 8 9. 54 9 = 19. 7 = 49

    10. 16 - 7 = 20. 6 = 42 10. 15 - 8 = 20. + 6 = 15

    Exercise 77 Exercise 78

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 8 = 11. 9 6 = 1. 9 6 = 11. 7 + 9 =

    2. 48 8 = 12. 6 + 7 = 2. 9 + 9 = 12. 13 - 6 =

    3. 17 - 9 = 13. 15 - 9 = 3. 16 - 8 = 13. 42 7 =

    4. 8 + 6 = 14. 8 + 9 = 4. 6 6 = 14. 8 8 =

    5. 16 - 8 = 15. 12 - 6 = 5. 6 + 8 = 15. 63 7 =

    6. 6 9 = 16. 48 6 = 6. 54 9 = 16. 17 - 9 =

    7. 56 7 = 17. 7 = 56 7. 13 - 7 = 17. 6 = 9

    8. 9 + 8 = 18. + 6 = 13 8. 7 9 = 18. - 8 = 9

    9. 42 7 = 19. - 7 = 9 9. 8 + 6 = 19. 7 = 63

    10. 16 - 9 = 20. 9 = 9 10. 56 8 = 20. + 7 = 14

    Exercise 79 Exercise 80

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 14 - 8 = 11. 63 9 = 1. 13 - 7 = 11. 48 6 =

    2. 56 7 = 12. 6 7 = 2. 6 + 6 = 12. 15 - 6 =

    3. 15 - 6 = 13. 8 + 7 = 3. 72 8 = 13. 7 7 =

    4. 9 8 = 14. 64 8 = 4. 9 9 = 14. 9 + 6 =

    5. 7 + 8 = 15. 8 9 = 5. 15 - 8 = 15. 56 7 =

    6. 6 9 = 16. 16 - 7 = 6. 8 6 = 16. 7 + 9 =

    7. 9 + 6 = 17. + 9 = 15 7. 54 9 = 17. - 9 = 6

    8. 14 - 7 = 18. 6 = 42 8. 15 - 7 = 18. + 8 = 16

    9. 72 8 = 19. 6 = 6 9. 9 8 = 19. 7 = 6

    10. 14 - 6 = 20. - 9 = 9 10. 9 + 7 = 20. 8 = 48

    Exercise 81 Exercise 82

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 12 - 6 = 11. 6 9 = 1. 81 9 = 11. 16 - 8 =

    2. 8 7 = 12. 16 - 7 = 2. 17 - 8 = 12. 56 8 =

    3. 48 8 = 13. 42 6 = 3. 9 7 = 13. 9 + 9 =

    4. 9 + 8 = 14. 8 + 6 = 4. 7 + 7 = 14. 42 7 =

    5. 42 7 = 15. 16 - 8 = 5. 13 - 7 = 15. 7 + 9 =

    6. 16 - 9 = 16. 54 6 = 6. 7 9 = 16. 13 - 6 =

    7. 7 + 6 = 17. 6 = 54 7. 8 + 6 = 17. 6 = 54

    8. 7 8 = 18. + 7 = 13 8. 8 8 = 18. - 9 = 8

    9. 17 - 9 = 19. - 9 = 6 9. 54 9 = 19. + 8 = 14

    10. 8 + 9 = 20. 7 = 7 10. 6 6 = 20. 9 = 8

    Exercise 83 Exercise 84

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 6 = 11. 6 + 9 = 1. 8 + 7 = 11. 8 7 =

    2. 14 - 8 = 12. 13 - 6 = 2. 6 6 = 12. 54 9 =

    3. 8 + 8 = 13. 6 9 = 3. 15 - 8 = 13. 9 8 =

    4. 15 - 7 = 14. 42 6 = 4. 9 + 8 = 14. 15 - 9 =

    5. 9 6 = 15. 7 7 = 5. 14 - 6 = 15. 9 + 6 =

    6. 18 - 9 = 16. 81 9 = 6. 48 6 = 16. 14 - 7 =

    7. 56 7 = 17. + 7 = 14 7. 7 + 9 = 17. + 6 = 12

    8. 7 + 6 = 18. 8 = 6 8. 63 7 = 18. 8 = 7

    9. 9 7 = 19. - 8 = 9 9. 8 8 = 19. 9 = 63

    10. 54 9 = 20. 8 = 64 10. 72 9 = 20. - 7 = 9

    Exercise 85 Exercise 86

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 16 - 8 = 11. 9 + 7 = 1. 8 + 6 = 11. 36 6 =

    2. 54 6 = 12. 7 6 = 2. 6 7 = 12. 17 - 9 =

    3. 8 + 9 = 13. 6 + 8 = 3. 14 - 7 = 13. 7 + 8 =

    4. 42 7 = 14. 8 9 = 4. 49 7 = 14. 72 8 =

    5. 6 8 = 15. 13 - 7 = 5. 9 9 = 15. 8 6 =

    6. 15 - 6 = 16. 6 + 6 = 6. 72 9 = 16. 7 + 6 =

    7. 63 9 = 17. 7 = 63 7. 12 - 6 = 17. 7 = 6

    8. 14 - 7 = 18. 8 = 8 8. 6 + 7 = 18. - 7 = 7

    9. 56 8 = 19. + 6 = 13 9. 9 8 = 19. 8 = 56

    10. 9 9 = 20. - 9 = 7 10. 81 9 = 20. + 9 = 18

    Exercise 87 Exercise 88

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 7 = 11. 9 = 54 1. 15 - 9 = 11. 48 = 8

    2. 7 + 6 = 12. 18 - = 9 2. 54 9 = 12. 7 + = 16

    3. 15 - 7 = 13. 56 = 8 3. 14 - 7 = 13. 56 = 7

    4. 48 8 = 14. 7 + = 14 4. 8 7 = 14. 8 = 64

    5. 81 9 = 15. 9 = 63 5. 9 + 6 = 15. 72 = 8

    6. 8 8 = 16. 54 = 6 6. 7 9 = 16. 8 + = 15

    7. 6 + 9 = 17. 9 + = 15 7. 16 - 7 = 17. 6 = 36

    8. 13 - 6 = 18. 14 - = 6 8. 6 + 6 = 18. 15 - = 7

    9. 6 9 = 19. 8 + = 16 9. 63 7 = 19. 9 + = 17

    10. 42 6 = 20. 17 - = 9 10. 9 8 = 20. 14 - = 8

    Exercise 89 Exercise 90

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 7 = 11. 6 = 48 1. 12 - 6 = 11. 7 = 56

    2. 64 8 = 12. 15 - = 9 2. 42 7 = 12. 72 = 9

    3. 7 + 6 = 13. 63 = 7 3. 9 + 9 = 13. 8 = 48

    4. 7 6 = 14. 14 - = 7 4. 81 9 = 14. 7 + = 13

    5. 9 + 7 = 15. 6 + = 14 5. 8 + 6 = 15. 36 = 6

    6. 56 8 = 16. 9 = 81 6. 6 7 = 16. 14 - = 7

    7. 16 - 9 = 17. 16 - = 8 7. 14 - 7 = 17. 7 + = 15

    8. 8 9 = 18. 54 = 9 8. 49 7 = 18. 9 = 72

    9. 13 - 7 = 19. 8 + = 17 9. 9 9 = 19. 6 + = 13

    10. 6 + 6 = 20. 42 = 6 10. 72 9 = 20. 17 - = 8

    Exercise 91 Exercise 92

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 8 = 11. 9 = 63 1. 8 7 = 11. 72 = 8

    2. 6 + 9 = 12. 54 = 6 2. 9 + 8 = 12. 8 + = 15

    3. 13 - 6 = 13. 9 + = 15 3. 14 - 6 = 13. 6 = 36

    4. 7 + 7 = 14. 14 - = 6 4. 6 + 6 = 14. 15 - = 6

    5. 15 - 7 = 15. 8 + = 16 5. 63 7 = 15. 54 = 6

    6. 81 9 = 16. 48 = 6 6. 9 8 = 16. 9 + = 15

    7. 6 9 = 17. 9 = 54 7. 15 - 8 = 17. 48 = 8

    8. 42 6 = 18. 18 - = 9 8. 56 8 = 18. 7 + = 16

    9. 7 7 = 19. 56 = 8 9. 7 9 = 19. 14 - = 7

    10. 7 + 6 = 20. 17 - = 9 10. 16 - 7 = 20. 8 = 64

    Exercise 93 Exercise 94

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 15 - 6 = 11. 7 = 42 1. 6 + 7 = 11. 8 + = 14

    2. 63 9 = 12. 13 - = 6 2. 14 - 7 = 12. 6 = 42

    3. 14 - 7 = 13. 7 + = 13 3. 7 8 = 13. 14 - = 7

    4. 9 + 7 = 14. 16 - = 7 4. 7 + 8 = 14. 42 = 6

    5. 6 8 = 15. 56 = 7 5. 72 8 = 15. 9 = 72

    6. 54 6 = 16. 6 + = 14 6. 8 6 = 16. 81 = 9

    7. 8 + 9 = 17. 9 = 63 7. 7 + 6 = 17. 9 + = 18

    8. 42 7 = 18. 64 = 8 8. 36 6 = 18. 9 = 81

    9. 9 9 = 19. 8 = 72 9. 17 - 9 = 19. 72 = 8

    10. 16 - 8 = 20. 6 + = 12 10. 49 7 = 20. 12 - = 6

    Exercise 95 Exercise 96

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 + 6 = 11. 9 = 54 1. 8 8 = 11. 8 = 56

    2. 8 8 = 12. 18 - = 9 2. 72 9 = 12. 56 = 7

    3. 17 - 8 = 13. 56 = 8 3. 8 + 7 = 13. 7 = 63

    4. 8 + 8 = 14. 6 + = 15 4. 15 - 8 = 14. 16 - = 9

    5. 15 - 7 = 15. 81 = 9 5. 9 + 8 = 15. 54 = 6

    6. 42 6 = 16. 7 + = 14 6. 14 - 6 = 16. 14 - = 7

    7. 7 7 = 17. 48 = 6 7. 6 + 6 = 17. 48 = 8

    8. 7 + 6 = 18. 13 - = 7 8. 63 7 = 18. 7 + = 16

    9. 9 7 = 19. 6 = 54 9. 9 8 = 19. 6 = 36

    10. 54 9 = 20. 14 - = 6 10. 9 + 6 = 20. 15 - = 6

    Exercise 97 Exercise 98

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 + 6 = 11. 15 - = 9 1. 9 8 = 11. 8 = 48

    2. 16 - 9 = 12. 63 = 7 2. 7 + 6 = 12. 81 = 9

    3. 8 9 = 13. 16 - = 8 3. 49 7 = 13. 6 + = 13

    4. 6 + 8 = 14. 56 = 7 4. 9 9 = 14. 17 - = 8

    5. 9 7 = 15. 6 = 48 5. 72 9 = 15. 7 + = 15

    6. 64 8 = 16. 54 = 9 6. 12 - 6 = 16. 72 = 9

    7. 13 - 7 = 17. 8 + = 17 7. 8 + 6 = 17. 14 - = 7

    8. 6 + 6 = 18. 42 = 6 8. 6 7 = 18. 36 = 6

    9. 7 6 = 19. 9 = 81 9. 14 - 7 = 19. 7 = 56

    10. 9 + 7 = 20. 14 - = 7 10. 42 7 = 20. 9 + = 18

    Exercise 99 Exercise 100

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. 9 = 54 1. 9 + 6 = 11. 6 + = 12

    2. 42 6 = 12. 18 - = 9 2. 8 8 = 12. 72 = 8

    3. 7 7 = 13. 56 = 8 3. 14 - 7 = 13. 15 - = 6

    4. 7 + 6 = 14. 17 - = 9 4. 56 8 = 14. 6 = 36

    5. 48 8 = 15. 9 = 63 5. 7 9 = 15. 8 + = 15

    6. 8 8 = 16. 9 = 6 6. 16 - 7 = 16. - 8 = 7

    7. 6 + 9 = 17. + 6 = 15 7. 9 + 8 = 17. 9 = 6

    8. 81 9 = 18. - 8 = 6 8. 8 7 = 18. - 6 = 8

    9. 13 - 6 = 19. + 8 = 16 9. 48 6 = 19. 7 = 9

    10. 7 + 7 = 20. - 7 = 8 10. 7 + 9 = 20. 8 = 72

    Exercise 101 Exercise 102

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 8 = 11. 7 + = 13 1. 9 + 9 = 11. 36 = 6

    2. 54 6 = 12. 16 - = 7 2. 9 9 = 12. 17 - = 8

    3. 8 + 9 = 13. 9 + = 16 3. 72 9 = 13. 49 = 7

    4. 42 7 = 14. 64 = 8 4. 12 - 6 = 14. 8 + = 14

    5. 9 9 = 15. 8 = 72 5. 7 8 = 15. 6 = 42

    6. 16 - 8 = 16. 8 = 7 6. 7 + 8 = 16. - 7 = 7

    7. 15 - 6 = 17. 7 = 63 7. 14 - 7 = 17. 8 = 72

    8. 63 9 = 18. 6 = 42 8. 42 7 = 18. 6 = 48

    9. 14 - 7 = 19. - 7 = 6 9. 7 + 6 = 19. 9 = 9

    10. 6 + 8 = 20. + 6 = 12 10. 72 8 = 20. + 7 = 13

    Exercise 103 Exercise 104

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 14 - 7 = 11. 14 - = 6 1. 8 + 8 = 11. 54 = 6

    2. 8 + 7 = 12. 7 + = 15 2. 42 7 = 12. 15 - = 8

    3. 63 9 = 13. 6 = 54 3. 6 8 = 13. 6 + = 12

    4. 8 9 = 14. 72 = 9 4. 9 + 6 = 14. 9 = 72

    5. 16 - 7 = 15. 14 - = 8 5. 56 7 = 15. 15 - = 7

    6. 6 + 9 = 16. 8 = 72 6. 7 + 9 = 16. 6 = 48

    7. 36 6 = 17. 7 = 8 7. 15 - 9 = 17. - 7 = 6

    8. 18 - 9 = 18. - 6 = 9 8. 48 6 = 18. + 7 = 16

    9. 64 8 = 19. + 6 = 15 9. 15 - 6 = 19. 8 = 9

    10. 7 6 = 20. 7 = 42 10. 7 7 = 20. 9 = 81

    Exercise 105 Exercise 106

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 8 + 6 = 11. 7 = 56 1. 13 - 6 = 11. 13 - = 6

    2. 16 - 8 = 12. 17 - = 8 2. 7 9 = 12. 56 = 7

    3. 54 6 = 13. 8 + = 17 3. 42 7 = 13. 9 = 63

    4. 16 - 7 = 14. 42 = 6 4. 6 + 8 = 14. 7 + = 14

    5. 42 6 = 15. 16 - = 7 5. 72 9 = 15. 81 = 9

    6. 9 6 = 16. 8 = 6 6. 8 8 = 16. 6 = 54

    7. 6 + 7 = 17. - 6 = 6 7. 9 + 9 = 17. + 6 = 14

    8. 15 - 9 = 18. 7 = 56 8. 17 - 9 = 18. - 8 = 9

    9. 9 + 8 = 19. + 6 = 13 9. 7 + 9 = 19. 9 = 6

    10. 49 7 = 20. 9 = 54 10. 16 - 8 = 20. 6 = 36

    Exercise 107 Exercise 108

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 17 - 8 = 11. 8 = 48 1. 7 6 = 11. 48 = 8

    2. 8 + 9 = 12. 8 + = 16 2. 18 - 9 = 12. 7 + = 15

    3. 7 8 = 13. 72 = 8 3. 9 + 6 = 13. 6 = 54

    4. 13 - 6 = 14. 7 = 63 4. 63 7 = 14. 12 - = 6

    5. 42 7 = 15. 7 + = 14 5. 9 8 = 15. 63 = 7

    6. 6 8 = 16. - 7 = 7 6. 16 - 8 = 16. - 7 = 7

    7. 54 6 = 17. 8 = 7 7. 9 7 = 17. + 7 = 13

    8. 15 - 7 = 18. + 9 = 18 8. 48 8 = 18. - 6 = 7

    9. 6 + 6 = 19. 7 = 63 9. 8 + 9 = 19. 9 = 6

    10. 36 6 = 20. - 9 = 6 10. 15 - 8 = 20. 7 = 56

    Exercise 109 Exercise 110

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 17 - 9 = 11. 16 - = 9 1. 16 - 7 = 11. 7 + = 13

    2. 7 7 = 12. 42 = 7 2. 8 9 = 12. 81 = 9

    3. 9 + 7 = 13. 9 = 81 3. 49 7 = 13. 8 + = 15

    4. 54 9 = 14. 8 + = 14 4. 6 7 = 14. 14 - = 8

    5. 15 - 6 = 15. 56 = 8 5. 13 - 7 = 15. 7 = 56

    6. 81 9 = 16. 8 = 64 6. 48 6 = 16. + 8 = 17

    7. 6 + 6 = 17. - 7 = 6 7. 16 - 9 = 17. 8 = 72

    8. 6 8 = 18. + 8 = 14 8. 36 6 = 18. - 9 = 8

    9. 15 - 8 = 19. 6 = 36 9. 6 + 9 = 19. 8 = 8

    10. 7 + 9 = 20. 8 = 9 10. 9 6 = 20. - 8 = 6

    Exercise 111 Exercise 112

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. 7 = 8 1. 6 6 = 11. + 9 = 16

    2. 42 6 = 12. + 8 = 16 2. 15 - 9 = 12. - 7 = 7

    3. 7 7 = 13. - 7 = 8 3. 54 9 = 13. 8 = 72

    4. 14 - 8 = 14. 7 = 63 4. 9 + 6 = 14. - 8 = 7

    5. 7 + 7 = 15. 9 = 6 5. 48 6 = 15. 8 = 7

    6. 81 9 = 16. + 6 = 15 6. 14 - 6 = 16. 9 = 63

    7. 9 6 = 17. 8 = 64 7. 8 + 7 = 17. - 7 = 9

    8. 18 - 9 = 18. + 9 = 15 8. 8 7 = 18. + 6 = 12

    9. 7 + 6 = 19. - 6 = 7 9. 9 + 8 = 19. 7 = 9

    10. 17 - 8 = 20. 8 = 6 10. 72 9 = 20. 8 = 64

    Exercise 113 Exercise 114

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 7 = 11. + 9 = 17 1. 81 9 = 11. 8 = 56

    2. 64 8 = 12. 7 = 6 2. 9 + 9 = 12. + 8 = 15

    3. 13 - 7 = 13. 9 = 81 3. 14 - 7 = 13. 8 = 9

    4. 7 6 = 14. - 8 = 8 4. 72 9 = 14. 9 = 81

    5. 9 + 7 = 15. 8 = 48 5. 12 - 6 = 15. - 7 = 7

    6. 54 6 = 16. + 8 = 14 6. 8 + 6 = 16. 6 = 48

    7. 6 + 6 = 17. - 6 = 9 7. 6 7 = 17. + 6 = 13

    8. 8 9 = 18. 9 = 7 8. 6 + 7 = 18. 6 = 6

    9. 7 + 6 = 19. - 7 = 7 9. 42 7 = 19. - 9 = 8

    10. 16 - 9 = 20. 8 = 7 10. 9 8 = 20. 7 = 7

    Exercise 115 Exercise 116

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 9 = 11. - 9 = 9 1. 9 + 6 = 11. 9 = 63

    2. 42 6 = 12. 7 = 8 2. 48 6 = 12. - 7 = 9

    3. 7 7 = 13. - 8 = 9 3. 7 + 9 = 13. 9 = 8

    4. 7 + 6 = 14. 8 = 6 4. 14 - 7 = 14. + 8 = 17

    5. 8 8 = 15. + 8 = 16 5. 8 8 = 15. 9 = 6

    6. 6 + 9 = 16. 7 = 63 6. 14 - 6 = 16. 7 = 56

    7. 13 - 6 = 17. 9 = 6 7. 6 + 6 = 17. + 7 = 15

    8. 7 + 7 = 18. + 6 = 15 8. 63 7 = 18. 6 = 36

    9. 14 - 8 = 19. - 7 = 8 9. 9 8 = 19. - 9 = 6

    10. 81 9 = 20. 6 = 54 10. 15 - 8 = 20. 8 = 7

    Exercise 117 Exercise 118

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 + 8 = 11. 6 = 42 1. 12 - 6 = 11. - 9 = 8

    2. 9 7 = 12. 9 = 7 2. 81 9 = 12. 7 = 7

    3. 64 8 = 13. 9 = 81 3. 9 + 9 = 13. - 7 = 7

    4. 8 + 9 = 14. - 8 = 8 4. 9 9 = 14. 7 = 6

    5. 54 6 = 15. 9 = 72 5. 72 9 = 15. + 6 = 14

    6. 6 8 = 16. 8 = 7 6. 9 8 = 16. 7 = 42

    7. 7 + 6 = 17. - 7 = 7 7. 14 - 7 = 17. + 7 = 13

    8. 16 - 9 = 18. + 6 = 12 8. 7 + 8 = 18. 8 = 56

    9. 9 + 7 = 19. - 6 = 9 9. 72 8 = 19. + 6 = 13

    10. 13 - 7 = 20. 7 = 6 10. 8 6 = 20. 6 = 6

    Exercise 119 Exercise 120

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 18 - 9 = 11. 9 = 54 1. 7 9 = 11. + 6 = 15

    2. 56 7 = 12. 6 = 7 2. 16 - 7 = 12. 6 = 8

    3. 17 - 8 = 13. 7 = 49 3. 72 9 = 13. + 9 = 16

    4. 48 8 = 14. + 6 = 13 4. 9 + 8 = 14. - 7 = 7

    5. 8 + 8 = 15. 8 = 64 5. 54 9 = 15. 8 = 64

    6. 9 7 = 16. + 9 = 15 6. 8 7 = 16. - 6 = 8

    7. 54 9 = 17. - 6 = 7 7. 8 + 7 = 17. + 6 = 12

    8. 9 + 6 = 18. + 7 = 14 8. 6 6 = 18. 7 = 9

    9. 15 - 7 = 19. - 8 = 6 9. 15 - 9 = 19. 8 = 72

    10. 9 6 = 20. 9 = 9 10. 56 8 = 20. - 8 = 7

    Exercise 121 Exercise 122

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 6 = 11. + 8 = 14 1. 17 - 9 = 11. 8 = 72

    2. 63 9 = 12. 7 = 63 2. 49 7 = 12. 9 = 9

    3. 9 9 = 13. 8 = 8 3. 14 - 7 = 13. - 6 = 6

    4. 16 - 8 = 14. + 9 = 17 4. 42 7 = 14. 9 = 81

    5. 8 9 = 15. 6 = 9 5. 8 + 6 = 15. 9 = 8

    6. 56 8 = 16. 8 = 48 6. 6 7 = 16. + 9 = 18

    7. 14 - 7 = 17. + 6 = 13 7. 6 + 7 = 17. - 7 = 7

    8. 6 + 6 = 18. - 9 = 7 8. 7 8 = 18. + 8 = 15

    9. 15 - 6 = 19. + 7 = 16 9. 7 + 6 = 19. 8 = 9

    10. 42 7 = 20. - 7 = 6 10. 36 6 = 20. 6 = 48

    Exercise 123 Exercise 124

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 18 - = 9 11. 8 = 64 1. 17 - = 8 11. 9 = 81

    2. 56 = 8 12. + 9 = 15 2. 49 = 7 12. + 8 = 15

    3. 17 - = 9 13. - 6 = 7 3. 14 - = 7 13. 8 = 9

    4. 48 = 6 14. + 7 = 14 4. 42 = 6 14. 6 = 48

    5. 8 + = 16 15. 9 = 54 5. 8 + = 14 15. - 7 = 7

    6. 9 = 63 16. 6 = 7 6. 6 = 42 16. 9 = 8

    7. 54 = 6 17. - 8 = 6 7. 6 + = 13 17. - 6 = 6

    8. 9 + = 15 18. 9 = 9 8. 7 = 56 18. 8 = 72

    9. 15 - = 8 19. 7 = 49 9. 7 + = 13 19. 9 = 9

    10. 9 = 54 20. + 6 = 13 10. 36 = 6 20. + 9 = 18

    Exercise 125 Exercise 126

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 7 = 63 11. 7 = 9 1. 7 = 42 11. + 6 = 13

    2. 16 - = 9 12. + 6 = 15 2. 63 = 7 12. - 9 = 7

    3. 72 = 8 13. - 8 = 7 3. 9 = 81 13. + 7 = 16

    4. 9 + = 17 14. 8 = 64 4. 16 - = 8 14. - 7 = 6

    5. 54 = 6 15. - 6 = 8 5. 8 = 72 15. 8 = 48

    6. 8 = 56 16. + 6 = 12 6. 56 = 7 16. + 9 = 17

    7. 8 + = 15 17. 8 = 72 7. 14 - = 7 17. 6 = 9

    8. 6 = 36 18. 6 = 8 8. 6 + = 12 18. + 8 = 14

    9. 15 - = 6 19. + 9 = 16 9. 15 - = 9 19. 7 = 63

    10. 56 = 7 20. - 7 = 7 10. 42 = 6 20. 8 = 8

    Exercise 127 Exercise 128

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 6 = 54 11. + 9 = 15 1. 6 = 36 11. 9 = 63

    2. 42 = 7 12. - 6 = 7 2. 15 - = 6 12. - 7 = 9

    3. 7 = 49 13. 8 = 6 3. 54 = 6 13. + 6 = 12

    4. 7 + = 13 14. - 7 = 8 4. 9 + = 15 14. 7 = 9

    5. 14 - = 6 15. + 6 = 15 5. 14 - = 8 15. 8 = 64

    6. 81 = 9 16. 8 = 64 6. 72 = 8 16. + 9 = 16

    7. 9 = 54 17. 7 = 8 7. 8 + = 15 17. - 8 = 7

    8. 18 - = 9 18. + 8 = 16 8. 8 = 56 18. 8 = 7

    9. 7 + = 14 19. 9 = 6 9. 9 + = 17 19. 8 = 72

    10. 17 - = 9 20. 7 = 63 10. 48 = 8 20. - 7 = 7

    Exercise 129 Exercise 130

  • Duration: 5 minutes (maximum) Date: Duration: 5 minutes (maximum) Date:

    1. 9 = 63 11. + 9 = 17 1. 81 = 9 11. 6 = 48

    2. 64 = 8 12. 7 + = 13 2. 9 + = 18 12. 8 = 9

    3. 13 - = 6 13. - 7 = 7 3. 9 = 72 13. + 6 = 13

    4. 6 + = 12 14. 8 = 7 4. 72 = 8 14. 6 = 6

    5. 8 = 72 15. 9 = 81 5. 12 - = 6 15. - 9 = 8

    6. 54 = 9 16. - 8 = 8 6. 8 + = 14 16. 7 = 7

    7. 7 = 42 17. 8 = 48 7. 6 = 42 17. 9 = 81

    8. 9 + = 16 18. + 8 = 14 8. 14 - = 7 18. - 7 = 7

    9. 9 = 7 19. - 6 = 9 9. 42 = 6 19. + 8 = 15

    10. 16 - = 7 20. 7 = 6 10. 6 + = 13 20. 8 = 56

    Exercise 131 Exercise 132