Math Review-1st 9 weeks

Fractions

200

Simplify 24/2

12

500

2/7 / 1/3

6/7

600

Simplify 40/100

2/5

800

Simplify 42 / 63

2/3

1000

1/2 + 3/4

1 1/4

Scientific Notation

200

5.1 x 10²

510

500

62,503

6.2503 x 10⁴

600

8 x 10^-7

0.0000008

800

6.12 x 10^-3

0.00612

1000

4,350,000

4.35 x 10⁶

Square Roots

200

What is the square root of 155 

12.45

500

What is the square root of 144

12

600

What is the negative square root of 87

-9.33

800

What is the square root of 64

8

1000

What is the square root of -23

Undefined

Order of Operation

200

3 - 2 + 14

15

500

7 - 4 + 3 x 2

9

600

7² + 4*3 - 6

55

800

6 / 3 * 4 + 9² (2+5)

575

1000

8/4 + 3 - 6 * 4²

-91

Ratios & Proportions

200

77 dimes to 84 dimes

11/12

500

18 quarts to 72 quarts

1/4

600

3 feet to 5 yards

1/5

800

25/5 = 4/X

x = 4/5

1000

x/99 = 19/20

X = 94.05