Numbers to 1000

Estimating & rounding

Name: ______________________________Date: ______________Score: ______ / 20

1.
Round 72 to the nearest 10.
2.
Round 77 to the nearest 10.
3.
Round 678 to the nearest 10.
4.
Round 598 to the nearest 10.
5.
Round 678 to the nearest 100.
6.
Round 740 to the nearest 100.
7.
Round 471 to the nearest 100.
8.
Round 234 to the nearest 10.
9.
Round 896 to the nearest 10.
10.
To round a number to the nearest 100, which digit do you look at?
1. Athe ones digit
2. Bthe tens digit
3. Cthe hundreds digit
11.
740 rounds to 800 to the nearest 100.
True False
12.
Using the bean table (100 beans weigh 10 grams), Arun's beans weigh 78 grams. About how many beans is a good estimate?
1. Aabout 700 to 800
2. Babout 70 to 80
3. Cabout 7 to 8
13.
Marcus estimates his bowl has 400 to 500 beans. They weigh 56 grams. Is this a good estimate?
1. AYes
2. BNo
14.
Put these numbers in order to place them on the number line, smallest to largest.
Write the order (smallest to largest) in the boxes:
- ?598
- ?123
- ?385
15.
177 rounds to 180 to the nearest 10.
True False
16.
2464 rounds to 2500 to the nearest 100.
True False
17.
Round 1531 to the nearest 100.
18.
Round 1376 to the nearest 100.
19.
Round 1249 to the nearest 100.
20.
Estimate the answer to 297 + 405 by rounding each number to the nearest hundred.

Answer key

Numbers to 1000 — Estimating & rounding