Gold Questions

Tuesday

~Subtraction~

Sione’s great aunt is 63 years old. His uncle is 47 years old. How much older than his uncle is Sione’s great aunt?

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Show your working:

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63 - 47 = ?

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If I add the same amount to each number, the difference between the two will stay the same! I can then make an easier subtraction problem to make it easier to solve!

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63+3 = 66

47 + 3 = 50

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66-50 is easier to solve!

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66-50 = 16

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Use this strategy to solve the following questions...

Example

Extra problems (show your working in your maths book)

446 - 257 = ?

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84 - 59 = ?

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653 - 427 = ?

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2307 - 699 = ?