Adding
Subtracting
Multiplying
100

2.3 + 5.1

7.4

100

7.6 - 3.1

4.5

100

0.7 X 0.2

0.14

200

3.04 + 8.2

11.24

200

10.01 - 4.5

5.51


200

0.3 X 0.8

0.24

300

14.13 + 7.85

21.98

300

56.59 - 52.98

3.61

300

4 X 0.5

2 or 2.0

400

7 + 35.72

42.72

400

75 - 24.9

50.1

400

0.1 X 0.2

0.02

500

8.29 + 17.089

25.379

500

47.039 - 14.72

32.319

500

3.2 X 0.6

1.92