Chapter 2 Percents

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Test Review

Chapter 2 Percents

Vocabulary Words to Study- Discount, Interest, Markdown, Markup, Percent Equation, Percent Error, Percent of Change, Percent of Increase, Percent of Decrease, Percent Proportion, Principal, Sales tax, Selling price, tip

** Before you ask for help on this review ask yourself, did you look at your notes? Did you look in the book at the examples? Did you ask a classmate?

Chapter 1- Percent of a Number

Find the percent of a number by writing it as a decimal. (Make the percent a decimal by moving to spaces to the left)

1. 40% of 70 2. 150% of 20

Find the percent of a number by writing it as a fraction. (Make the percent a fraction by putting the percent over a 100 and the whole number over 1)

3. 15% of 100 4. 160% of 35 Chapter 2 Percent and Estimation

Find the percent of a number by estimation (Fraction or Decimal)

5. 42% of 120 6. 174% of 200

Chapter 3 The Percent Proportion (percent, part, whole). Cross multiplication/Butterfly

7. What percent of 25 is 20? 8. What number is 5% of 60?

9. 40% of what number is 26? Chapter 5 Percent of Change

Find each percent of change. Round to the nearest whole percent. State whether the percent of change is an increase or decrease.

10. 48 notebooks to 14 notebooks. 11. $240 to $320

Percent Error

Find the percent error if the estimate is $230 and the actual amount is $245. Round to the nearest whole percent. Chapter 6 Sales Tax, Tips, and Markup- (When there is a tip, tax, or markup, you make the percent a decimal, multiply it by the original price, then the answer you get you add it to the original price)

12. $58bill; 20% tip 13. $46 shoes; 2.9% tax

13. Find the total cost of a spa treatment of $42 including 6% tax and a 20% tip. (When there are two percents to find the cost, you add the percents together then do the steps from problem 1) 14. A store pays $150 for a portable basketball backboard and the markup is 40% What is the selling price.

Chapter 7 Discount

Find the sale price to the nearest cent. (To find the discount price you have to make the percent a decimal, multiply, by the original amount, the answer you get from that you subtract from the original price)

15. $140 coat; 10% discount 1 6. $65 dress pants; 20% discount

17. Malachi bought a new fishing rod. The regular price of the fishing rod was $125. He bought it on sale with a 15% discount. Sales tax of 3% is applied to the discounted total. What was the sale price with tax of Malachi's fishing rod to the nearest cent? Chapter 8 Financial Literacy: Simple Interest Formula

I=prt p-principal r-=rate t-= time

18. $4500, 9%, 3.5 years 19. $300, 5.5%, 9months

20. $1000, 7%, 2years 21. $175.80, 12%, 2 months 22. Marco invests $760 into a savings account. The account pays 4% simple interest. How much interest would he earn after 5 years.