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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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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)

User Floriangosse
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1 Answer

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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.

User Abhik Chakraborty
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