Question

Diana divided 4,368 by 21. She got 28 as her answer.

Estimate the quotient. Which best describes why
Diana's answer is or is not reasonable?
O Diana's answer is reasonable because a good
estimate of the quotient is between 20 and 30.
O Diana's answer is reasonable because a good
estimate of the quotient is between 25 and 35.
O Diana's answer is not reasonable because a good
estimate of the quotient is between 200 and 300.
O Diana's answer is not reasonable because a good
estimate of the quotient is between 2,000 and 3,000.

Answer 1

Estimating division quotient using rounding.

Step-by-step explanation:

Diana divided 4,368 by 21 and got 28 as her answer. To estimate the quotient, we can use rounding. 4,368 is closest to 4,350, which is a multiple of 21. Using 4,350, we can calculate that 4,350 ÷ 21 equals 207. The quotient is between 200 and 300, so Diana's answer of 28 is not reasonable.

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