8th Grade Math

Scientific Notation

100

3 x 10⁴

30,000

200

6 x 10⁸

600,000,000

300

33 x 10²

3,300

400

12 x 10³

12,000

500

568 x 10^-5

0.00568

Exponents

100

13⁸

104

200

12²

144

300

7³

21

400

23⁷

161

500

48⁵

240

Multi-step Equations

100

5 + 14a = 9a -5

a = -2

200

13x - 9x + 20 = 30 + 2

x = 3

300

9n - 6 = 5n + 18 

n = 6 

400

7x + 3 = 2x + 13

x = 2

500

2(x - 5) = 5x + 23

-11 = x

Irrational or Rational?

100

1

irrational 

200

5/20

rational

300

3.14

irrational

400

15

irrational

500

2/4

rational

multiplying and dividing integers

100

5 x -9

-45

200

42 x -3

-126

300

18 / -3 

-6

400

17 x -12

-204

500

21 / -7

-3