Rounding to the nearest 100 Worksheets - Free Printable

Here are the solutions for rounding to the nearest 10 and the nearest 100.

Round these numbers to the nearest 10

Rule: Look at the ones digit (the last number).
* If it is 5 or more, round up.
* If it is 4 or less, round down.

1) 27 → The ones digit is 7, so round up to 30
2) 42 → The ones digit is 2, so round down to 40
3) 154 → The ones digit is 4, so round down to 150
4) 76 → The ones digit is 6, so round up to 80
5) 35 → The ones digit is 5, so round up to 40
6) 123 → The ones digit is 3, so round down to 120
7) 98 → The ones digit is 8, so round up to 100
8) 119 → The ones digit is 9, so round up to 120
9) 137 → The ones digit is 7, so round up to 140
10) 241 → The ones digit is 1, so round down to 240
11) 385 → The ones digit is 5, so round up to 390
12) 183 → The ones digit is 3, so round down to 180
13) 466 → The ones digit is 6, so round up to 470
14) 760 → It ends in 0, so it stays 760
15) 394 → The ones digit is 4, so round down to 390
16) 637 → The ones digit is 7, so round up to 640
17) 444 → The ones digit is 4, so round down to 440
18) 15 → The ones digit is 5, so round up to 20
19) 103 → The ones digit is 3, so round down to 100
20) 917 → The ones digit is 7, so round up to 920
21) 796 → The ones digit is 6, so round up to 800

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Round these numbers to the nearest 100

Rule: Look at the tens digit (the middle number).
* If it is 5 or more, round up to the next hundred.
* If it is 4 or less, round down to the current hundred.

1) 243 → Tens digit is 4, round down to 200
2) 184 → Tens digit is 8, round up to 200
3) 266 → Tens digit is 6, round up to 300
4) 873 → Tens digit is 7, round up to 900
5) 327 → Tens digit is 2, round down to 300
6) 109 → Tens digit is 0, round down to 100
7) 358 → Tens digit is 5, round up to 400
8) 772 → Tens digit is 7, round up to 800
9) 536 → Tens digit is 3, round down to 500
10) 82 → Tens digit is 8, round up to 100
11) 916 → Tens digit is 1, round down to 900
12) 447 → Tens digit is 4, round down to 400
13) 752 → Tens digit is 5, round up to 800
14) 707 → Tens digit is 0, round down to 700
15) 364 → Tens digit is 6, round up to 400
16) 436 → Tens digit is 3, round down to 400
17) 750 → Tens digit is 5, round up to 800
18) 347 → Tens digit is 4, round down to 300
19) 782 → Tens digit is 8, round up to 800
20) 158 → Tens digit is 5, round up to 200
21) 954 → Tens digit is 5, round up to 1000

Final Answer:
Round to the nearest 10:
1) 30
2) 40
3) 150
4) 80
5) 40
6) 120
7) 100
8) 120
9) 140
10) 240
11) 390
12) 180
13) 470
14) 760
15) 390
16) 640
17) 440
18) 20
19) 100
20) 920
21) 800

Round to the nearest 100:
1) 200
2) 200
3) 300
4) 900
5) 300
6) 100
7) 400
8) 800
9) 500
10) 100
11) 900
12) 400
13) 800
14) 700
15) 400
16) 400
17) 800
18) 300
19) 800
20) 200
21) 1000