Math Skills Review

Place Value

100

Name the place value of the underlined number:

81.2561

thousandths

200

Round the number to the underlined value:

62,998

63,000

300

Write the number in Standard form:

2.356 x 10^-4

0.0002356

400

Write the number in Scientific notation:

92,480,000

9.248 x 10⁷

500

Order the decimals from least to greatest:

78.8088,  78.008, 71.8808, 78.08888 

71.8808,  78.008, 78.08888, 78.8088

Percents

100

Write the decimal as a percent:

0.52

52%

200

Write the percent as a decimal:

8.25%

0.0825

300

Calculate 10% of 725

72.5

400

Calculate 25% of 92

23

500

Jiana is going shopping and sees a cute pair of shoes on sale for 20% of. If the original price of the shoes is $32, how much will she save? Round to the nearest hundredth.

She will save $6.40

Fractions

100

Reduce:  18/72

1/4

200

Rewrite each fraction so they have common denominators: 

3/4,  5/9, and 7/12

27/36, 20/36, and 21/36

300

Order the fractions from least to greatest (use the original fractions):

2/3,  3/5,  and 5/12  

5/12, 3/5, and 2/3

400

Subtract the fractions. Write your answer as a simplified fraction. 

4/5 - 2 1/6

-1 11/30

500

Divide the fractions. Write your answer as a simplified fraction.

3 2/5 divided by 1 2/3

2 1/25

Order of operations

100

Add:

-2 + -15

-17

200

Subtract:

-7 - (-3)

-4

300

Multiply:

-12 x -5

60

400

Divide:

-75 divided by 5

-15

500

Use order of operations to evaluate:

((18/6)² + 4) + 1 x 3

16

Equations

100

Solve the equation:

x - 5 = 20

x = 25

200

Solve the equation:

a + 7 = -13

a = -20

300

Solve the equation:

j/3  =  8

j = 24

400

Solve the equation:

2p + 7 = 19

p = 6

500

Solve the equation:

1/2 c + 4 = -11

c = -30