Review Exercise 30

Subjective Questions

1. (a) Find the value of .

(b) Simplify (2m5y2)2 ÷ m3y–1.

2. Calculate the value of k in each of the following.

(a) 22k × 64 = 214 (b) 39 ÷ 3k =

3. (a) Find the value of ÷ 3–5.

(b) Given that 72f = 49 ÷ 7f. Determine the value of f.

4. (a) Calculate the value of .

(b) Simplify (2p2r3)5 ÷ p7r–2.

5. (a) Find the value of n that satisfies the equation 2n ÷ 16 = 20.

(b) Find the exact value of (16–5) .

6. Simplify.(a) 4w0 × w7 × 3w–2 (b) (k3r–1)5 ÷ k2r4

7. (a) Find the value of 9 × .

(b) Simplify (2x8y–3)3 ÷ 4x – 2 y – 1 .

8. (a) Calculate the value of 0.008 .

(b) Simplify (3k5w–4)3 ÷ k–3w6.

9. Calculate the value of each of the following.

(a) 27 (b) 32 +

10. (a) Simplify x7y2 ÷ (x4y–1)3.

(b) Calculate the value of 3 × 30 × .

11. (a) Find the value of 225 .

(b) Simplify (9m–2p)2 ÷ (3m4p–5)3.

© Pearson Malaysia Sdn. Bhd. 2008 Essential Mathematics PMR1

Review Exercise 30

12. (a) Calculate the value of – .

(b) Simplify 24t9y4 ÷ (2t–2y)3.

13. (a) Find the exact value of .

(b) Simplify k9m2 ÷ (k–3m5)2.

14. Without using a calculator, calculate the value of the following.

(a) 125 (b) 21 × 49

15. (a) It is given that 53 ÷ = 57. Find the value of w.

(b) Simplify (fk – 3)6 ÷ (f –1k2)2.

16. (a) Calculate the value of .

(b) Simplify 3h7k–3 ÷ 6h4k3.

17. Calculate the value of each of the following without using a calculator.

(a) 625 (b) 5 × .

18. (a) Find the value of 1 000 .

(b) Simplify (3w–1z5)2 ÷ (w3z–2)3.

19. (a) Without using a calculator, find the value of .

(b) Simplify m3n2 ÷ (m2n–3)3.

20. (a) Calculate the value of 27 × .

(b) Simplify (2p7q2)3 × (p–2q5)2.

© Pearson Malaysia Sdn. Bhd. 2008 Essential Mathematics PMR2