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18 November, 23:46

Estimate 66.81 + 10.19

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Answers (1)
  1. 19 November, 01:35
    0
    77

    Step-by-step explanation:

    Remark

    Estimate is not the same thing as find the answer to. Estimate means give an answer that is not found on a calculator. Turn your calculator off and look at the two number. Round them so you can get an answer in your head.

    Round the two numbers

    66.81 rounds to 67

    10.19 rounds to 10

    Solution

    67 + 10 = 77

    Exact Answer

    Anyone doing this problem gets a little jumpy if they don't know the exact answer. Actually the estimate and the calculator answer are the same. That doesn't happen too often.

    Comment

    Every math class you take, you should learn to estimate your answers. If you don't, you won't know if your answer is correct or not.
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