Adding and Subtracting Decimals

Adding

100

12.5+4.8

17.3

200

0.75 + 1.25

2

300

15.62 + 9.3

24.92

400

8.005 + 2.1

10.105

500

45.1 + 105.78

150.88

Subtracting

100

10.5-4.2

6.3

200

7.85-2.6

5.25

300

15-3.75

11.25

400

0.99-0.5

0.49

500

100.0-45.15

54.85

Adding

100

0.015 + 0.05

0.065

200

19.99 + 1.01

21

300

7.3 + 0.999

8.299

400

100.5+50.05

150.55

500

0.66+0.34

1

Subtracting

100

5.678-1.234

4.444

200

20.1-0.05

20.05

300

12.34-10.0

2.34

400

1.0-0.001

0.999

500

50.05-25.1

24.95

Both

100

8.5-3.75-1.2

3.55

200

2.5+3.125+0.1

5.725

300

10.0-0.999

9.001

400

88.8+11.2

100

500

0.123+0.456

0.579