Adding and Subtracting Positive Rational Numbers

55.78+4.6=

• 60.28

• 55.32

• 56.44

• 60.38

32.15+24.15=

• 8.0

• 12.0

• 56.30

• 12.30

1/8 + 3/6

• 15/24

• 20/48

• 4/14

• 20/24

4/5 + 3/4

• 7/9

• 30/20

• 31/20

• 19/20

34.5 + (-7) = (a)  

• -41.5

• 41.5

• -27.5

• 27.5

What is the sum of 4 3/10 and (-6.2)? Express your answer as a decimal.

Mathematical Equivalence

ON

-14 + 9 + 13

• 8

• 33

• -9

• -33

9/10 - 7/10

• 16/10

• 2/10

• 3/5

• 1/10

Find the sum 3.35 + 1.4 + 3.65

• 8.9

• 8.22

• 8.43

• 8.4

80.93-68=

• 12.93

• 81.61

• 148.93

• 86.13