Download - Addition and Subtraction
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Addition and Subtraction
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What words do you relate to this symbol?
![Page 3: Addition and Subtraction](https://reader036.vdocument.in/reader036/viewer/2022082712/568139d0550346895da18264/html5/thumbnails/3.jpg)
What words do you relate to this symbol?
![Page 4: Addition and Subtraction](https://reader036.vdocument.in/reader036/viewer/2022082712/568139d0550346895da18264/html5/thumbnails/4.jpg)
The Importance of Language
• Children need to understand a wide variety of words that relate to Addition and subtraction that will support them in answering the following:
• Word problems• Mental maths• Real life problems and experiences.
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What to look forNumber bondsChildren need to have secure knowledge of number bonds especially number bonds to 10! This will support their familiarity of number bonds to 20 and 100.8+2+16+4=30 79+21=100 10 20 90 10
Doubles 8+14+8+13 16
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What to look for
Larger number on top
Carry overs at the top
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Inverse Operations Addition and subtraction are inverse operations of each other. Children should use the opposite operation to check their answer is correct.
e.g. 45+12= 57 57-12=45
![Page 8: Addition and Subtraction](https://reader036.vdocument.in/reader036/viewer/2022082712/568139d0550346895da18264/html5/thumbnails/8.jpg)
Things to Remember:
• Organisation of work: aligning numbers
• Larger number on top
• Carry over’s:*At the top for subtraction *At the bottom for addition
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Any Questions?
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Have a go!
52 44 623 +39 +29 +328
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Have a go!
52 74 617-36 -58 -365