8th Grade Math Test Prep – Percents

8th Grade Math Test Prep – Percents

8th grade math · test prep · state test style

1. Multiple choice. Circle the correct answer.

1. 30% of a number is 45. What is the number?

a) 75b) 150c) 13.5d) 135

2. A movie ticket went up from $8 to $10. By what percent did the price increase?

a) 125%b) 25%c) 20%d) 2%

3. What is 15% of 240?

a) 30b) 36c) 24d) 16

4. A jacket costs $80. It is on sale for 25% off. What is the sale price?

a) $60b) $65c) $55d) $20

5. A restaurant bill is $40. How much is a 15% tip?

a) $6b) $4c) $5.50d) $15

6. A price goes up by 10% and then down by 10%. The final price is

a) 10% less than the originalb) 1% more than the originalc) 1% less than the originald) the same as the original

2. Circle T if the sentence is true or F if it is false.

The fraction 3/5 written as a percent is 35%.TF

After a 100% increase, a price is twice as much as before.TF

If 12 of 30 students have a dog, then 40% of the students have a dog.TF

25% of a number is one fourth of it.TF

50% of 80 is the same as 80% of 50.TF

3. Open response. Show your work and write the answer.

A bike costs $500. In March its price was cut by 10%, and in April the new price was cut by another 20%. What was the price in April? By what percent did the price drop over the two months?

Answer:

A school has 480 students. 35% of them take the bus, 1/4 ride a bike, and the rest walk. How many students walk to school?

Answer:

About this worksheet

A percents test for 8th grade math test prep: sale prices and markups (also two in a row), sales tax and tips, what percent one number is of another, finding a number from its percent, percent change and unit rates. The two open-response problems take several steps, as on a state test. The questions take the forms of end-of-year state math tests: multiple choice, true or false, and open-response problems with room to show the work. Every print draws other multiple-choice and true-or-false questions in another order, and the answer key marks the right answers.

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