WorksheetsTEST PERCENT OF CHANGE & PERCENT ERROR
Total questions: 7
Worksheet time: 2hrs 45mins
Name
Class
Date
1.
Sally went to the clearance rack at a department store and found a shirt she wanted to buy. The shirt was $36.00 and is on sale for $24.00. What is the percent of the decrease?
a)
33%
b)
67%
c)
50%
d)
34%
2.
Mary lost 30 pounds. Before her diet she weighed 180 pounds. What is the percent of change?
a)
17% Decrease
b)
18% Decrease
c)
19% Decrease
d)
20% Decrease
3.
The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter?
a)
35%
b)
25%
c)
30%
d)
20%
4.
Find each percent decrease. Round to the nearest percent.
From $80 to $64
From $80 to $64
a)
35%
b)
10%
c)
20%
d)
25%
5.
When a garden plot was measured, the dimensions were 102 in x 54 in. Use the greatest possible error to find the minimum and maximum possible areas.
a)
Min: 5,260.25 in2, Max: 5,879.25 in2
b)
Min: 4,300.5 in2, Max: 6,765.5 in2
c)
Min: 5,430.25 in2, Max: 5,586.25 in2
d)
Min: 5,555.25 in2, Max: 6,666.25 in2
6.
Valerie's jewelry box measures 6.5 cm x 10.8 cm x 5.5 cm. Find the percent error in calculating its volume. (Round each volume to the nearest tenths)
a)
About 0.21%.
b)
About 2.1%.
c)
About 3.2%.
d)
About 2.8%.
7.
David measured a rectangle as 9.4 in. by 8.3 in. Which is the maximum possible area?
a)
78.91 in2
b)
75.75 in2
c)
77.13 in2
d)
78.02 in2
100 %
