Add and Subtract Real Numbers

-9 + - 2

• 11

• -11

• 7

• -7

-8 - (- 6 )=

• -14

• 14

• 2

• -2

Add 2/9 + 3/9 =

• 6 /9

• 5 /9

• 2 /3

• 5 /3

a + b = b + a is

• Associative Property

• Commutative Property

• Distributive Property

• None of the above

-⅔ - (-⅓) = 

• 1

• -1

• 1/3

• -1/3

The cards in Iman's hand had a value of 2.75, but then she added five −1.5 cards to her hand.  What is the new value of the cards in her hand?

Mathematical Equivalence

ON

Find the sum. (-4.8) + 2.1

Mathematical Equivalence

ON

Match the following

• 3.4

• -3.8 + 7.2

• 4.84

• -4.7 + (-5.65)

• -10.35

• -3.18 + 8.02

• A

• B

• C

• D

5.23 - (-9.1)

• -3.87

• 3.87

• 4.32

• 14.33