What is 45 take away 15?

45 - 15 = 30 is one way of writing the subtraction.

Another way is :-

45

-15

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Subtract the 'units' column ; 5 - 5 = 0

Hence first part of answer is

45

-15

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XXX 0

Then subtract the 'tens' column ; 4 - 1 = 3

Hence the full answer is

45

• 15

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=30 The same answer!!!1