This task is about showing how to solve subtraction equations on a number line.
For the questions below show how to solve the equations on the number line.
Read through the example in the box before you start.
Example: Sarah had to solve this problem: 96 –  = 64.She knew that 96 – 30 = 66, and that 66 – 2 = 64. So she showed this on the number line and then wrote the answer in the box:  |
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a)
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Use the number line below to show how to solve the equation: 129 –
= 86 |
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b)
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Use the number line below to show how to solve the equation: 570 – = 137  |
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c)
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Use the number line below to show how to solve the equation: 786 –
= 428 |
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d)
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Use the number line below to show how to solve the equation: 816 –
= 229 |