Math Review Young

Formulas

100

What is the area formula?

l x w  or length x width

200

What is the perimeter formula?

2l +2w

300

What is the formula to find the area of a parallelogram?

b x h or base x height

400

How do you find surface area?

Find the area of all surfaces and add them up.

500

Area of a triangle formula?

1/2 b x h  or 1/2 base x height

Percent

100

64% of 350

224

200

Write 32% as a decimal and a fraction in simplest form.

0.32 and 8/25

300

An exam has 25 questions. Sue earned a 76% on the exam. How many questions did she get correct?

19 Questions

400

Wendy brought $15 to the mall. She spent $6 on lunch. What percent of her money did she spend on lunch?

40%

500

Brian is a real estate agent. He earns a 2.5% commission on each sale. During the month of June he sold three houses. The houses sold for $153,000, $399,000, and $221,000. What was Brian’s total commission on these three sales?

$19,325

Math Misc

100

Assume that the number of hours Katie spent practicing soccer is represented by x. Michael practiced 4 hours less than twice the number of hours that Katie practiced. How many hours did Michael practice?

2x-4

200

write as a power 6 x 6 x 6 x 6 x 6

6⁵

300

John and Charlie have a total of 80 dollars. John has x dollars. How much money does Charlie have?

$80-x

400

Ted can power wash both sides of the fence enclosing his yard in four hours. If he and his wife, Anne, work together, they can complete the same job in two hours. If Anne does the job alone, how would it take her to power wash the fence?

4 hours

500

The area of a square whose sides measure four units is added to the (difference of eleven and nine) divided by two. What is the total value?

17

Ratios

100

Simplify this ratio  12/16.

3/4

200

Are these ratios equivalent  12/16  and 36/48?

Yes

300

What is an equivalent ratio to 42/64? 

21/32

400

Write 2 equivalent ratios for 2/8.

4/16, 6/24,8/32,10/40

500

Are these ratios equivalent: 3/5 and 51/85?

Yes

Measure of Center

100

12,13,14,14,15,16,17:  What is the mode?

14

200

What are the 3 measures of Center?

Mean, Median, Mode

300

Find the median of the data: 12, 2, 1, 9, 5,4, 3,11.

4.5

400

Find the mean of the data: 2,2,2,3,3,4,4,5,5,6,6,7,7.

4.3

500

Find the mean, median and mode of the data: 5,6,7,10,4,9,10,11,12,13,14.

Median 10  Mode 10 Mean 9.2