U1 PI 1 Fraction & Decimal Arithmetic Project

Adding Decimals

100

3.62 + 1.84

5.46

200

8.85 + 2.87

11.72

300

50.8 + 50.4

101.2

400

34.8 + 64.8 + 12.5

112.1

500

7.9106 + 2.887 + 45.035

55.8326

Subtracting decimals

100

3 - 1.8

1.2

200

8.73 - 1.38

7.35

300

173.8512 - 9

164.8512

400

48.49 - 37.85

10.64

500

429.23 - 255.32

173.91

Adding Fractions

100

9/10 + 6/10

3/2 or 1 1/2 

200

11/20 + 1/2

21/20 or 1 1/20

300

15/16 + 7/8

29/16 or 1 13/16

400

7/10 + 7/10 + 5/6

62/30 or 2 7/30

500

1/5 + 1/2 + 1/2 +1/2

17/10 or 1 7/10

Subtracting Fractions

100

7/13 - 5/13

2/13

200

1/14 - 9/10

29/35

300

1/2 - 1/5

7/10

400

7/18 - 1/6

2/9

500

10/18 - 2/18

4/9