Add, Subtract, Multiply and Divide Rational Numbers

-85% + 1.7

• 2.55

• -2.55

• -0.85

• 0.85

If a student won $15 in a contest and then lost $5, how much money do they have left?

• $10

• $20

• $12

• $7

-7 + 6 =

• -13

• 13

• -1

• 1

-9 + (-9) =

• -18

• 18

• 0

-12 - 5 =

• -17

• -7

• 7

• 17

Calculate a - 12 if a = -15

• -3

• 3

• -27

• 27

Calculate x + -15 if x=5

• -10

• 10

• 20

• -20

Calculate y - (-7) if y = 5

• 12

• -12

• -2

• 2

What is 8 minus negative 10?

• -18

• 18

• 2

• -2

-7 + -9 =

• -2

• 2

• -16

• 16