Estimate 83 x 21 by first rounding each number to the nearest ten.Which of the following 3 numbers is a reasonable estimate of the product?1600, 1800, 2400
Question
Estimate 83 x 21 by first rounding each number to the nearest ten.Which of the following 3 numbers is a reasonable estimate of the product?1600, 1800, 2400
Solution
First, let's round each number to the nearest ten.
83 rounds to 80 and 21 rounds to 20.
Next, we multiply these rounded numbers together.
80 x 20 equals 1600.
So, the reasonable estimate of the product 83 x 21 is 1600.
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