7th Grade Math

(Marvins-Underground-K-12) #1
316 Percent

Text Option Take the Quick Check below. Refer to the Quick Review for help.


You have two options for checking
prerequisite skills for this chapter.

Y
p

Are You ReadyAre You Ready


for the Chapter?for the Chapter?


Online Option Take the Online Readiness Quiz.


Multiply.


  1. 300 × 0.02 × 8 2. 85 × 0.25 × 3

  2. 560 × 0.6 × 4.5 4. 154 × 0.12 × 5

  3. MONEY If Nicole saves $0.05 every
    day, how much money will she have
    in 3 years?


EXAMPLE 1

Evaluate 240 × 0.03 × 5.
240 × 0.03 × 5
= 7.2 × 5 Multiply 240 by 0.03.
= 36 Simplify.

Write each percent as a decimal.


  1. 40% 7. 17% 8. 110%

  2. 157% 10. 3.25% 11. 8.5%

  3. FOOD Approximately 92% of a
    watermelon is water. What decimal
    represents this amount?

  4. TAX A county sales tax is 7.5%. Write
    this percent as a decimal.


Write each decimal as a percent.


  1. 0.7 15. 0.08 16. 0.95

  2. 5.8 18. 0.675 19. 0.725

  3. SPORTS A tennis player won 0.805 of
    the matches she played. What percent
    of the matches did she lose?


EXAMPLE 2

Write 9.8% as a decimal.
9.8% = 0.098 Move the decimal point two places
to the left and remove the percent
symbol.

EXAMPLE 3

Write 0.35 as a percent.
0.35 = 35% Move the decimal point two places
to the right and add the percent
symbol.

%%


EXAMPLE 4

Write 0.2 as a percent.
0.20 = 20% Move the decimal point two places
to the right and add the percent
symbol.

314_317_C06_CO_895130.indd 316 12/30/09 3:59 PM

Free download pdf