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To estimate the sum of 7.4, 3.1, and 9.8, you can round each number to the nearest whole number. 7.4 rounds to 7, 3.1 rounds to 3, and 9.8 rounds to 10. Adding these rounded numbers together gives an estimated sum of 7 + 3 + 10 = 20.

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ProfBot

7mo ago

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