Rounding Rules
Add It Up
Subtract It Down
Mixed Number Addition
Mixed Number Subtraction
100

Round 452 to the nearest tenth

450

100

345 + 267

612

100

800 - 356

444

100

2 ¼ + 1 ¼

3 ½

100

3 ½ − 1 ½

2

200

Round 2,547 to the nearest hundred

2,500

200

4,123 + 2,405

6,528

200

4,000 - 1,689

2,311

200

3 ⅓ + 1 ⅓

 4 ⅔

200

7 ¾ − 2 ¼

5 ½

300

Round 29,675 to the nearest hundred

29,700

300

8,640 + 7,371

16,011

300

13,498 - 9,273

4,225

300

5 ¼ + 2 ¾

8

300

10 ⁶/₈ − 3 ²/₈

7 ⁴/₈ or 7 ½

400

Round 63,729 to the nearest thousand

64,000

400

24,893 + 17,608

42,501

400

42,000 - 29,843

12,157

400

5 ¹/₆ + 3 ⁴/₆

8 ⁵/₆

400

 6 ⁵/₆ − 2 ¹/₆

4 ⁴/₆ or 4 ⅔

500

Round 47,892 to the nearest ten thousand

50,000

500

67,581 + 49,368

116,949

500

95,432 - 38,756

56,676

500

 9 ⁶/₁₀ + 2 ⁴/₁₀

12

500

12 ¹¹/₁₂ − 5 ⁵/₁₂

7 ⁶/₁₂ or 7 ½

M
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