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Square Cuts

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Sometimes party tricks can be useful short cuts, too. These math tricks also happen to be short cuts to squaring numbers quickly and even a couple short cuts to multiplying quickly. (2 pages)

Description

Sometimes party tricks can be useful short cuts, too. These math tricks also happen to be short cuts to squaring:

  • Numbers that end in 5
  • Numbers in the 40s
  • Numbers in the 50s

This cheat sheet also includes two short cuts with similar techniques:

  • Multiplying two numbers in the 90s
  • Multiplying two digit numbers that end in 1

If you get no other sheet, this is really the sheet to get!

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