2x2 Multiplication: Advanced Shortcut

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Uploaded by on Jul 28, 2011

http://clicktotweet.com/84Ncs

Learn how to calculate 2 x 2 multiplication problems faster and easier.

Mini-Transcript: create 2 mini-problems out of the single problem. First, multiply the top number by the digit in the ones column of the second number; then, multiply the top number by the digit in the tens column of the second number--however, just multiply the tens digit alone and add a zero to your answer at the end, since you are multiplying tens. Last, add these two answers together and you have your final answer.

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Education

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  • cool

    

  • What's the profit? It's a longer counting, isn't it?

  • cool

  • Wow man you're really smart. I never knew about this technique

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