Here’s an example of a SPEED MATH shortcut for MULTIPLYING NUMBERS NEAR 100 : (Mul) Nr100 from the MULTIPLICATION category.

When can I use this method?
For multiplying numbers near 100. The numbers can be either more than 100 or less than 100 or a combination of the two.
You may also use this method to multiply numbers a little farther away from 100 as long as their differences from 100 are easy to multiply.
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