Estimating Quotients

Estimate the following quotients by rounding each number to the largest place value then dividing.

5,738 ÷ 21

Estimate the following quotients by rounding each number to the largest place value then dividing.

2,659 ÷ 28

Estimate the following quotients by rounding each number to the largest place value then dividing.

 9,155 ÷ 34

Estimate the following quotients by rounding each number to the largest place value then dividing.

8,515 ÷ 89

Estimate the following quotients by rounding each number to the largest place value then dividing.

1,463 ÷ 53

A swimming pool requires 672 ft2 of floor space. The length of the swimming pool is 32 ft. Which of the following would be the best estimate of the width of the pool?

• 20 ft

• 2100 ft

• 2.5 ft

• 220 ft

Janice bought 28 apps for her phone that, altogether, used 1,348 MB of space. If each app used the same amount of space, about how many MB of memory did each app use?

• 40 MB

• 400 MB

• 40,000 MB

• 4 MB

Peggy has saved $9,215. If she is paid $45 an hour, about how many hours did she work?

• 180 hours

• 18 hours

• 1,800 hours

• 18,000 hours