Math 8: Unit 1 Review

Fractions

100

1/3 + 1/2

5/6

200

1/3 - 1/4

1/12

300

2/5 x 3/4 

6/20 = 3/10

400

2/3 divided by 3/8

16/9

500

1 and 1/3 divided by 2 and 1/2

8/15

Exponents

100

2³

8

200

3⁵

243

300

9³

729

400

4^-2

1/16

500

6^-5

1/7776

Scientific Notation

100

3 x 10³

3000

200

2.64 x 10³

2640

300

1.097 x 10^-2

0.01097

400

Write 32561 in scientific notation

3.2561 x 10⁴

500

Write 0.000043200 in scientific notation

4.32 x 10^-5

Perfect Squares

100

What is the square root of 25

5

200

What is the square root of 169

13

300

Is 81 a perfect square?

Yes, 9

400

what is the cube root of 8

2

500

Is 125 a cube root?  

Yes, 5

Sets and Properties

100

What set does this number belong to?   

3

R Q Z W N 

200

What set does this number belong to?

-28

R Q Z

300

What set does this number belong to?

pi

R I

400

What is the property shown below?

2y * 0 = 0

The zero property

500

What property is shown below?

(a + b) + c = a + (b + c)

Associative Property