Algebraic Thinking Review

2 times the sum of 14 and 12

• 2 x 14 + 12

• 14 + 12 x 2

• 2 x (14 + 12)

• (14 + 12) x 2

The sum of seven and x

• 7-x

• x-7

• 7x

• 7+x

Kendra’s math teacher assigned math homework, but Kendra decided to do 5 extra problems. Which algebraic expression shows how many problems Kendra completed?

• 5x

• x-5

• x+5

• x⁵

Andy and 4 friends equally shared some pizzas. How much did they each eat?

• 4x

• x / 4

• 5x

• x / 5

Which is the correct equation for the pattern in the table?

• y = 0.3x

• y = x + 0.3

• y = 3x

• y = x + 3

Solve the equation:
a + 2.4 = 7.8

• a = 10.2

• a = 5.4

• a = 17.76

• a = 3.25

Aaron wants to buy a bicycle that costs $128. So far, he has saved $56. The equation
a + 56 = 128 can be used to find the amount a in dollars that Aaron still needs to save. What is the solution of the equation?

• a=64

• a=72

• a=132

• a=184

20 = 8x - 12

• 2

• 3

• 4

• 5

Solve for "x" ?
x-9=15

• 23

• 6

• 24

• 11

When Mark is 10, how old is Amber? 

• 10

• 12

• 14

• 16