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This worksheet is about subtracting numbers.

 

Example

 

 

goat   goat
Ali has £71 in his piggy bank.    He spent £42.

 

How many pounds did he have left?

 

Answer

We use the number line below

 

We start at 71 and go back 42 to get to 29.

 

When you go back 42, you can go back 1, then 10, then 10, then 10, then 10, then 1

 

71 - 42= 29

 

Ali has 29 pounds left.

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