Math 8 Chapter 5.1 Practice.
Name:_____________
Date:______________
Block:_________
1)
Each hundred chart represents 100%. What fraction of each hundred chart is
shaded? Write each fraction as a decimal and as a percent.
_______________
2)
______________
_____________
Write each percent as a fraction and as a decimal.
a) 3%
b) 51%
c) 98%
d) 29%
3)
Each hundred char t represents 100%. What fraction of each hundred chart is
shaded? Write each fraction as a decimal and as a percent.
Math 8 Percent, Fraction and Decimal Worksheet. Name:____Key________
Date:_____________________
Block:__________
1. Fill in the blanks with the appropriate word.
a) When translating a mathematical statement, the word __of____ is replaced with a
multiplication symbol.
b) The __denominator_____ can be considered the whole object.
c) The ___numerator_____ is a portion of the whole object.
d) The ___percent____ of the base is the amount.
2. Translate the following statements into the equations.
a) 28% of 300 is 84.
0.28x 300 = 84
c) What is 12% of 360?
_____ = 0.12 x 360
e) 18% of what number is 72?
0.18 x _____ = 72
b) 120 is 30% of 400.
120 = 0.3 x 400
d) 60 is what percent of 350?
60 = _____ % x 350
f) What percent of 350 is 70?
_____ % x 350 = 70
g) What percent of 40 is 120?
h) 180 is 200% of what number?
_____ % x 40 = 120
180 = 200% x ______
7. In a class of 35 students, 5 students failed the exam. What percent of students failed the
exam?
________% = 5 ÷ 35
________% = 0.143 = 14.3%
35 x ______% = 5 ;
8. A student had 18 correct, and 6 incorrect answers on a quiz. What percent of the quiz
did the student answer correctly? Total # of questions = 18 + 6 = 24
_____% = 18 ÷ 24
24 x _____% = 18 ;
_____% = 0.75 = 75%
Ans: The student answered 75% of the quiz correctly.
9. The population of a town is 24 000. If the population decreases by 4%, what is the new
population?
New % = 100% – 4% = 96%
New population: 24 000 x 96% = 23 040
Ans: The new population is 23 040.
10. Cindy’s weekly pay, after deductions of 32%, was $595. What was her pay before the
deductions?
If the deduction is 32%, then she net 100% – 32% = 68%
_______ x 68% = $595 ;
________ = $595 ÷ 68% (change to decimal)
_______ = $ 875
Ans: Cindy’s weekly pay before the deductions was $875.
11. Kate’s weekly pay went from $850 to $918. What percent increase in pay did she
receive? Increase by = $918 – $850 = $68
Ans: Kate received a 8% increase in pay.
12. The price of a movie increased by 20% to $12.50. What was the old price of seeing a
movie?
New % = 100% + 20% = 120%
120% x _______ = $12.50 ; ______ = $12.50 ÷ 120% (change to decimal)
______ = $10.42
Ans: The old price of a movie ticket was $10.42
13. A coat cost $100.24 after adding 12% tax to the cost. What was the price of the coat
before taxes? $100.24 is the final price including taxes.
Regular price x (112%) = $100.24 ;
Regular price = $100.24 ÷ 112%
Regular price = $89.5
Ans: The price of the coat before taxes was $89.50