Rounding to the nearest 10
Rounding to the nearest 100
Rounding to the nearest 1000
Adding
Subtracting
100

Round 16 to the nearest 10

20

100

round 101 to the nearest 100

100

100

round 2003 to the nearest 1000

2000

100

16 + 32

48

100

57 - 15 =

42

200

Round 52 to the nearest 10

50

200

Round 245 to the nearest 100

200

200
Round 7897 to the nearest 1000

8000

200

21 + 53=

74

200

125 - 22=

103

300

Round 178 to the nearest 10

180

300

Round 678 to the nearest 100

700

300

round 1550 to the nearest 1000

2000

300

153 + 330

483

300

457 - 120

337

400

Round 823 to the nearest 10

820

400

Round 1789 to the nearest 100

1800

400

Round 1432 to the nearest 1000

1000

400

100 + 400=

500

400

923 - 567=

356

500

Round 1653 to the nearest 10

1650

500

Round 17 896 to the nearest 100

17 900

500

Round 17 898 to the nearest 1000

18 000

500

2008 + 7322

9330

500

1589 - 1266=

 323

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