Archives For: 02-2017

Math Tips And Tricks: Multiply by 9, 99, 999, etc…..


Posted on: Friday, February 3rd, 2017

Multiply by 9,99, or 999 without multiplying There is a shortcut for multiplying by: 99, 999, 9999, and so on. This trick works with any number of 9’s you have. This trick allows you to multiply a number by another number where all of the digits of the first number are 9’s To multiply numbers […]

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