robertxcoolcool robertxcoolcool
  • 09-10-2015
  • Mathematics
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how are basic facts can help you find 10*20*30*40 mentally

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TSO
TSO TSO
  • 09-10-2015
When you do the multiplication you can notice that 10, 20, 30, 40 all have 0's at the end.

So that means 10 *20*30*40 = 1*2*3*4*10000 = 24*10000 = 240,000
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