Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5×( 1.9 + 3.15) and 6.9 × (0.2 + 3.2)

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asked Nov 4, 2018 155k views

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Abhik Chakraborty · Answer 1 · 2018-11-09T12:35:04+0000

Let's round off 5×( 1.9 + 3.15): We get 5(2 + 3) = 5(5) = 25

Let's also round off 6.9 × (0.2 + 3.2)L We get 7(0+3) = 21

The first expression is greater.

Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5×( 1.9 + 3.15) and 6.9 × (0.2 + 3.2)

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