jpalmer jpalmer
  • 19-01-2017
  • Mathematics
contestada

write an expression that can be used to find 4 x 275 using mental math and properties of numbers

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xoxome
xoxome xoxome
  • 19-01-2017
I would start by breaking apart the 275 into 200, 70, and 5. Then I would multiply 4 by each of those numbers, giving you 800, 280, and 20. Then, I would add those number back together (800+280+20) and that gives you a final answer of 1,100. 

The expression  that can be used would be...
4(200)+4(70)+4(5)
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