Timothy11 Timothy11
  • 01-12-2015
  • Mathematics
contestada

explain how to find 40 times 80 using mental math

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Аноним Аноним
  • 01-12-2015
First you can use simple multiplication. Take out the zeroes from 40 and 80. You get 4 and 8. 4 multipled by 8 is 32. so that means that 80 times 40 is 320
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