7th grade Math Review

Front

Solve: 8 = 2x - 12

Back

x = 10

Front

Figure out what n equals in this equation: 6n + 4 = -26

Back

n = -5

Front

Find the mode of the following set: 12, 10, 10, 10, 13, 12, 11, 13, 10

Back

The mode is 10.

Front

How can Jeff find the area of the square not covered by the circle?

Back

Subtract the area of the circle from the area of the square.

Front

Solve: -3x + 5 = -16

Back

x = 7

Front

What is the definition of a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of the mean in a data set?

Back

The mean is the average of all numbers in the set.

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 × side length.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.