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Rounding
Subtraction
Addition
Estimate
Random
100

Round the underlined digit 10.245

10.2

100

15.51 - 11.32

4.19

100

3.77+4.66

8.43

100

76 + 23

100

100

80.25 - 25.6

54.65

200

Round the underlined digit 99,102

100,000

200

5.7 - 0.62

5.08

200

7.03 + 48.7

55.73

200

15.01 - 4.4 

11

200

32 + 5

37

300

Round 3.999 to the nearest whole number

4

300

81.1 - 37.22

43.88

300

10.93 +0.96

11.89

300

80.5 + 9.6

91

300

Estimate 34.5 + 65.2

100

400

Round the underlined digit 405.567

405.6

400

15.55 - 6

9.55

400

1.47 + 1.80

3.27

400

9.5 + 9 + 8.6

28

400

round the underlined digit 345.677

346.000

or 

346

500

Round the underlined digit 45476

45500

500

17.09 - 9.7

7.39

500

125.9 + 6.77

132.67

500

3.4 + 3.7 + 2.9

10

500

round the underlined digit 45.2485

45.25