Additive and Subtractive Expressions

A large cheese pizza costs $18. Each topping you add on costs $1.50. How much would it cost to get a large cheese pizza with c toppings added?
Write your answer as an expression.

• c + 18

• 18 + 1.50 

• 18 + 1.50c

• 1.50c - 18

The inverse operation of addition is _______________.

• Division

• Multiplication

• Addition

• Subtraction

Evaluate (solve).

y - 4.6 = 12

• y = 16.6

• y = 5.8

• y = 7.4

• Answer not Given

Solve for x.

x - 8 = -5

• x = 13

• x = -13

• x = 3

• x = -3

Rick Ross is trying to identify a number. He knows the following properties of the unknown number:
-- The opposite of the unknown number is 27. 
-- The absolute value of the unknown number is 27.
What is the unknown number Rick Ross is trying to identify?

• 1/27

• -1/27

• 27

• -27

X + 8 = 2
What is the value of X?

• X = 10

• X = 6 

• X = -6

• X = -4

Sean was playing Simon says with his cousins after school. His cousin, Simon, said move back 10 times. Now move forward 3, he then said move forward another 9 steps. Lastly he said to take 15 steps backward. Write an equation and solve.

• 37

• 17

• -13

• -19

Mrs. Betik claims that her freezer will chill her chocolate covered frog legs to -20 degrees. Mr. Barajas claims that his freezer will chill his frog legs 6 degrees colder than Mrs. Betik's freezer. Which of the following expressions represents the temperature Mr. Barajas's freezer will chill his frog legs?

• -20 + 6 = -14

• -20 + 6 = -26

• -20 + -6 = -26

• -20 + -6 = -14