[Speed Math] SUBTRACTION USING ADDITION

Here’s an example of a SPEED MATH shortcut for SUBTRACTION USING ADDITION: (AS) N-M(+) from the ADDITION SUBTRACTION category.

When can I use this method?

For subtracting any numbers.

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Download Practice sheet for SUBTRACTION USING ADDITION

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Notes –

1. This method uses the concept of rounding up the Subtrahend to a number that is easier to subtract and then compensating the extra difference subtracted by adding it back to the answer.
2. It allows a faster, easier and mistake proof way of subtracting numbers.

Related Shortcuts –

Adding using Subtraction: (AS)N+M(-)

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