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Math Grade 8 Review

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

What is a prime number?

a)

A number that can only be multiplied by one and itself.

b)

Anything to the second power.

c)

Anything to the third power.

d)

There is no such thing.

2.

What does squared mean?

a)

Anything to the third power.

b)

Anything to the second power.

c)

Anything to the fourth power.

d)

Anything to the fifth power.

3.

What does cubed mean?

a)

Anything to the second power.

b)

Anything to the fourth power.

c)

Anything to the third power.

d)

Anything to the fifth power.

4.

What is the formula to Pythagorean Theorem?

a)

a+b2=c4

b)

a4+b2=c6

c)

There is no formula for the Pythagorean Theorem.

d)

a2+b2=c2

5.

What is the correlation of time spent studying and test score?

a)

Positive Correlation

b)

Negative Correlation

c)

No Correlation

d)

I don't know

6.

What is the correlation to a dog's age and activity level?

a)

Positive Correlation

b)

Negative Correlation

c)

I don't know

d)

No Correlation

7.

What is the correlation of necklaces to bracelets?

a)

I don't know

b)

Negative Correlation

c)

No Correlation

d)

Positive Correlation

8.

What's an acute angle?

a)

An angle more than 90 degrees.

b)

An angle that is exactly 90 degrees.

c)

I don't know

d)

An angle less than 90 degrees.

9.

What's an obtuse angle?

a)

An angle that is more than 90 degrees.

b)

An angle that is less than 90 degrees.

c)

An angle that is exactly 90 degrees.

d)

I don't know

10.

What is a right angle?

a)

I don't know

b)

An angle that is exactly 90 degrees.

c)

An angle that is more than 90 degrees.

d)

An angle that is less than 90 degrees.

11.

What is circumference?

a)

The measurement around a pentagon.

b)

The measurement around a square.

c)

The measurement around a circle.

d)

The measurement around a triangle.

12.

True or false.


Radius is half of your diameter.

a)

True

b)

False

13.

True or False.


Diameter is a straight line that passes through the center of a circle.

a)

False

b)

True

14.

What is the formula for area?

a)

A=πdA=\pi d

b)

A=πr2A=\pi r2

c)

I don't know

d)

A=πr2A=\pi r^2

15.

What are the formulas for circumference?

*Note: You can pick multiple.*

a)

 C=πdC=\pi d  

b)

 C=πr2C=\pi r2  

c)

I don't know

d)

 C=πr2C=\pi r^2  

16.

What is your radius if your diameter is 24 meters?

a)

6 meters

b)

2 meters

c)

12 meters

d)

4 meters

17.

What is your diameter if your radius is 7.5 feet?

a)

9 feet

b)

12 feet

c)

16 feet

d)

15 feet

18.

What is your radius if your diameter is 3 inches?

a)

1.5 inches

b)

1 inch

c)

2.5 inches

d)

2 inches

19.

What is your diameter if your radius is 6 centimeters?

a)

3 centimeters

b)

12 centimeters

c)

24 centimeters

d)

2 centimeters

20.

Answer:  100\sqrt{100}  

(a)