Show:
Addition
Subtraction
Rounding
Multiplication
100

10 + 5

15

100

12 - 6

6

100

Round to the nearest 10:

27

30

100

2 X 5

10

200

35 + 42

77

200

54 - 21

33

200

Round to the nearest 10:

45

50

200

3 X 3

9

300

964 + 23

987

300

845 - 641

204

300

Round to the nearest 10:

569

570

300

5 X 6

30

400

671 + 245

916

400

400 - 273

127

400

Round to the nearest 10:

842

840

400

6 X 8

48

500

1234 + 5678

6912

500

2026 - 1954

72

500

Round to the nearest 10:

4536

4540

500
12 X 5

60