Coopie8518 Coopie8518
  • 14-11-2018
  • Mathematics
contestada

How can you use mental math to determine that 2800 divide equals 400

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tramserran
tramserran tramserran
  • 14-11-2018

2800 ÷ 400

Cross out 2 zeros from both numbers, then you have 28 ÷ 4  = 7

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