Math 8 - Chapter 1 Review

Decimals/Fractions

100

What is 2/5 as a decimal?

0.4

200

What is 0.65 as a fraction? Simplify.

65/100 --> 13/50

300

What is 0.006 as a fraction? Simplify.

6/1000 -- 3/500

400

What is -1.45 as a fraction? Simplify.

-1 45/100 --> -1 9/50

500

What is -15 9/54 as a decimal?

-15.16666

Exponents and Roots

100

Simplify the following using exponents: 4 x 4 x 4 x 4 x 6 x 6 x 3 x 5 x 5 x 5

4⁴ x 6² x 3 x 5³

200

Evaluate 5⁶

15,625

300

What is the square root of 144?

12

400

What is the cube root of -729?

-9

500

What is the square root of -25?

No real solution

Monomials

100

Evaluate h³ x h⁵

h⁸

200

Evaluate x²⁸ / x¹²

x¹⁶

300

Evaluate (5k¹⁰)(6k¹²)

30k²²

400

Evaluate 100x¹⁰ / 50x⁴

2x⁶

500

Evaluate (5a²b⁴c⁶)⁴

625a⁸b¹⁶c²⁴

Scientific Notation

100

Write 675 using scientific notation.

6.75 x 10²

200

Write 74 in scientific notation.

7.4 x 10¹

300

Write 5.253 x 10⁸ in standard form.

525,300,000

400

Write 0.000064 in scientific notation.

6.4 x 10^-5

500

Write 8.9334 x 10^-9 in standard form.

0.0000000089334

Real Numbers

100

Classify the following number:  15

Natural, whole, integer, rational

200

Classify the following:  -8

Integer, rational

300

Classify the following:  0

Whole, integer, rational

400

Classify the following:  1 2/5

Rational

500

Classify the following number:  -7.49713895267...

Irrational