7th grade Math Review

Front

Variable

Back

A letter or symbol that represents an unknown quantity

Front

Which of the following is a unit rate: 56 miles in 2 minutes, $4.59 for 3 pounds, $10 per student, $30 for 15 minutes?

Back

$10 per student

Front

Solve for x

Back

x=6

Front

How many sticks of pepperoni are needed to make 36 pizzas if 14 sticks are needed for 28 pizzas?

Back

18 sticks

Front

What is the absolute value?

Back

The distance a number is from zero.

Front

-5 - (- 3)

Back

-2

Front

-32/8

Back

-4

Front

−x²+2−1+6x²−4x²

Back

x² +1

Front

Simplify the expression:
6 + 2(7x - 3) 

Back

14x

Front

How much tip should you leave if you want to tip 23% at Applebee's on a $27.31 bill?

Back

$6.28