8th grade math review

perfect squares

100

what is the square root of 25

5

200

what is the square root of 144 times the square root of 81

9

300

what is a perfect square

the product of a rational number multiplied by itself

400

what is the square root of 64 times the square root of 25 plus 2

42

500

name all the perfect squares

1,4,9,16,25,36,49,64,81,100,121,144

rational/irrational numbers

100

is the square root of 181 a rational number?

yes

200

what is a rational number?

any number that can be written as a fraction

300

what is an irrational number?

any number that cannot be written as a fraction

400

how can you tell if a decimal is irrational?

the numbers behind the decimal point will keep going and they do not repeat

500

name 3 rational and 3 irrational numbers

answers will vary

exponents

100

what is an exponent

expressing a large number in power form

200

simplify

8X8X8X8X8X8X8X8

8^8

300

expand

12^3X2^0

12X12X12X1

400

SOLVE

3^5X2^6

15552

500

SOLVE

8^3 + 5^4

1137

fractions

100

2/5 TIMES 3/12

6/60

1/10

200

12/15 TIMES 21/13

252/195

300

simplify

25/75

1/3

400

25/37 times 54/12

1350/444

500

simplify 81/108

3/4

converting numbers

100

1.15

1 15/100

200

352/1000

.352

300

25.678

12 678/1000

400

9.78

9 78/100

500

111.111

111 111/1000