Percent of Increase/Decrease, Percent of Error, Simple Interest
Authored by Anthony Clark
Mathematics
7th Grade
CCSS covered
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15 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
An account has a principal of $100 and a simple interest rate of 3.8%. The table shows the simple interest earned and the new account balance for 1, 2, and 3 years. Complete the table for the fourth year. YOU WILL CHOOSE 2 ANSWERS.
$3.80
$15.20
$115.20
$126.60
Tags
CCSS.7.RP.A.3
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Find the principal if you earn $5.25 in interest after 21 months and the simple interest rate was 2.0%.
DO NOT TYPE A DOLLAR SIGN.
Tags
CCSS.7.RP.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the percent of decrease (to the nearest percent)
Original: 196
New: 174
10%
11%
12%
13%
Tags
CCSS.6.RP.A.3C
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The label on a package of bolts says each bolt has a diameter of 0.35 inches. One bolt has the diameter of 0.33 inches. What is the percent error?
.94%
94%
5.7%
57%
Tags
CCSS.6.RP.A.3C
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jonah earned $150.36 in interest on an account that earns 1.4% simple interest. If Jonah opened the account 12 years ago, what was the principal amount?
$850
$868
$880
$895
$902
Tags
CCSS.7.RP.A.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?
16.67%
20%
2500%
80%
Tags
CCSS.6.RP.A.3C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the percent of increase.
Original: 32
New: 50
10%
36%
52%
56%
Tags
CCSS.6.RP.A.3C
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