jlynnduong77owlr43 jlynnduong77owlr43
  • 21-09-2017
  • Mathematics
contestada

How could i explain 5x198 using mental math and distributive property? Using words??

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jorel1380
jorel1380 jorel1380
  • 21-09-2017
5 x 198=(5 x 200)-(5 x 2)=1000-10=990
Since 198=200-2, you can express the equation this way, and solve it easily in your head, instead of multiplying it out.
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