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Tips to do big multiplications in my mind

big numbers calculation case math mental math multiplication

Recent activity on Jul 24, 2017

Anonymous gave the best answer on Jul 23, 2017

Most people struggle with big numbers with a lot of zeroes. Here's how I teach my students and I've gotten great results w/ it. The thing to remember is: 1000 = K, 1000,000 = M, and ... so on for "B"). Now, K * K = ... (read entire answer)

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on Jul 24, 2017 on Jul 24, 2017
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