Add or Subtract Rational Numbers

-200 + 250 =

• -50

• 50

• 450

• -450

-9 - ( -6) =

• -15

• 15

• 3

• -3

8+7

• 15

• -15

• 14

• 1

-800 + 400

• 400

• -400

• 1200

• -1200

-⅔ - (-⅓) = 

• 1

• -1

• 1/3

• -1/3

• -1/18
• -1  1/18
• 1/18
• 1  1/18

5.23 - (-9.1)

• -3.87

• 3.87

• 4.32

• 14.33

Match the following

• 3.4

• -3.8 + 7.2

• -10.35

• -3.18 + 8.02

• 4.84

• -4.7 + (-5.65)

-7.79 + 5.4

Mathematical Equivalence

ON

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