Show:
Rounding to the nearest tens
Rounding to the nearest hundreds
Rounding to the nearest thousands
Addition
Subtraction
100

33

30

100

544

500

100

961

1,000

100

17+3

20

100

31-7

24

200

84

80

200

561

600

200

2,174

2,000

200

50+11

61

200

50-18

32

300

126

130

300

536

500

300

3,534

4,000

300

1,115+2,200

3,315

300

160-65

95

400

647

650

400

892

900

400

7,359

7,000

400

3,500+2,092

5,592

400

700-428


272

500

1257

1,260

500

994

1,000

500

9517

10,000

500

9,925+3,876

13,801

500

9567-4237

5330