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Anonymous Anonymous
  • 23-03-2016
  • Mathematics
Answered

instead of dividing 220 x 5 double both numbers and mentally calculate the quotient

Verified Answer :

MichaelLiu
MichaelLiu MichaelLiu
  • 23-03-2016

220 5 = 220 2/2 5 2/2 = 440 10 / 4 = 110 10 = 1100

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