Math 8 Chapter 1 Review

Fractions & Decimals

100

3/10

0.3

200

5/2 or 

2 1/2

2.5

300

5/8

0.625

400

0.12

3/25

500

2/9

0.22222.....

PEMDAS

100

5+7xx3

26

200

(5+4)xx3^2

81

300

18div3-7+2xx5

9

400

(17-6div2)+4xx3

26

500

(3xx5^2 div 15) - (5-2^2)

4

Exponent Rules

100

15^0

1

200

1/8^-2

64

300

4^2 cdot 4^1

64

400

(x^3)^5

x^15

500

6^8 / 6^10

1/36

Scientific Notation

100

467

467

200

5.2 xx 10^-5

0.000052

300

38,700,000

3.87xx10^7

400

0.00000907

9.07xx10^-6

500

(3.7xx10^2) cdot (2.4xx10^3)

8.88xx10^5

Miscellaneous

100

sqrt81

9

200

Which of the following is an integer but NOT a whole number:

17, -62, 13.8

-62

300

1346^1

1346

400

Give an example of an irrational number.

There are a ton of answers to this, up to Mrs. Salisbury to determine a winner.

500

 sqrt30 is between which 2 integers?

5 and 6