Estimating Products Worksheet

Estimating Products

Read each question carefully and estimate the product. Show your rounding or compatible numbers used for estimation.

1. To estimate 47 x 23, we can round 47 to   and 23 to  . The estimated product is  .

2. To estimate 189 x 31, we can round 189 to   and 31 to  . The estimated product is  .

3. The estimated product of 62 x 198 is   after rounding to the nearest ten and hundred respectively.

4. Which pair of compatible numbers would you use to estimate 387 ÷ 9?

5. Estimate the product of 5.8 x 12.3.

6. Explain two different ways to estimate the product of 29 x 51. Which method do you think is better and why?

7. The estimated product of 495 x 21 using rounding to the nearest hundred and ten is 10,000.

8. When estimating 7.2 x 9.8, rounding both numbers to the nearest whole number gives an estimated product of 70.

9. A store sells 18 cases of soda each day. Each case contains 24 cans. Estimate the total number of cans sold in 7 days.

10. Use the number line below to help you round 3.7 to the nearest whole number.

3.7 rounded to the nearest whole number is  .