enjolie enjolie
  • 02-11-2016
  • Mathematics
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list the partial products of 42×27

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Аноним Аноним
  • 02-11-2016
42 x 28 = (40 + 2) x (20 + 8) = 40 x 20 + 40 x 8 + 2 x 20 +  2 x 8 
= 800 + 320 + 40 + 16
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