7th Grade Math Review

7th Grade Math Review

Multiple Choice

Does 7x + 3 = 10x ?

• Yes

• No

Multiple Choice

A negative number divided by a negative number equals

• A positive number

• a negative number

Multiple Choice

A negative number divided by a positive number equals

• a positive number

• a negative number

Multiple Choice

Solve:

• 20
• 7
• 10
• 3

Multiple Choice

Choose the first step in solving the following equation.

-3y - 12 = 14

• add 3 to both sides

• add 12 to both sides

• subtract 12 from both sides

• subtract 3 from both sides

Multiple Choice

Solve for x:

14+3x=26

• x=6

• x=1

• x=4

• x=3

Multiple Choice

The _______ of a circle is the distance around the circle.

• radius

• diameter

• circumference

Multiple Choice

A _______ is a line segment that goes from one edge of a circle to the other and passes through the center.

• radius

• diameter

• circumference

Multiple Choice

A _______ is a line segment that goes from the center to the edge of a circle.

• radius

• diameter

• circumference

Multiple Choice

What is the radius of this circle?

• 18 in
• 36 in
• 9 in

Multiple Choice

A number subtracted by a negative number results in (ex. 4- -4=?)

• adding

• subtracting

Multiple Choice

Area of a triangle is

• A= 1/2 x length x width

• A= length x width

Multiple Choice

A negative times a negative results in

• A positive

• A negative

Multiple Choice

A negative times a positive results in

• A positive

• A negative

Multiple Choice

What is the equation for Circumference?

• C= $2\pi r$

• C= $\pi r^2$

Multiple Choice

What is equation for area of circle?

• A= $\pi r^2$

• A= $2\pi r$

Multiple Choice

What is equation for area of rectangle?

• A = length x width

• A = 1/2 x length x width

Multiple Choice

How do you solve for x on equations? Example: 2x-4 = 20

• Do the opposite of equation

• Follow PEMDAS

Multiple Choice

If you get a percent problem what do you have to do with the percent?

• Change to a decimal and multiply

• Add the percent

• Subtract the percent

Multiple Choice

If you get a proportion problem, what do you normally do?

• Multiply or Divide

• Add and Subtract

Multiple Choice

Complementary angles means

• 2 or more angles that add up to 90 degrees

• 2 or more angles that add up to 180 degrees

Multiple Choice

Supplementary means

• 2 or more angles that add up to 180 degrees

• 2 or more angles that add up to 90 degrees