Rational Number Operations

Quiz by Amber Shelton

Mathematics
North Carolina K-8 Extended Content Standards

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15 questions
• Q1
Alice had ─\$17 in her bank account. She added the \$64.27 she earned that week. Then, he spent \$54.50 on a new game. How much money is in her account now?
-7.23
300s
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• Q2
Over the course of a 7 week aerobics class, the people participating have a combined weight change of ─35 pounds. If there are 4 people in the class, what is the average change in weight per person?
-8.75
300s
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• Q3
Justin gives his sister 3/5 of his dollar. How much money is that?
\$0.35
\$0.40
\$0.60
\$3.50
300s
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• Q4
Brian buys 2 books for \$15.99 each, a DVD for \$19.95, and a magazine for \$2.50. He also returns a jacket that costs \$42.59. What is the net change in the amount of money he has after his shopping trip?
11.84
66.27
-11.84
-66.27
300s
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• Q5
What is 50% as a simplified fraction?
1/2
300s
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• Q6
What is 1/4 as a decimal?
0.25
300s
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• Q7
What is 1/8 as a decimal?
0.12
0.125
0.18
0.25
300s
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• Q8
What is the percent form of 4/5?
80%
300s
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• Q9
What is the simplified fraction form of 0.4?
2/5
300s
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• Q10
Omar makes a total of \$51.75 selling brownies and muffins at a bake sale. If he sells 16 brownies for \$2.25 each, how many muffins does he sell at \$1.75 each?
5
11
7
9
300s
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• Q11
Marilyn lives 3.5 blocks from the library She leaves the library and walks 3.5 blocks before realizing she is walking in the opposite direction from her house. After walking 3.5 blocks back, how far does Marilyn have to walk?
7
-7
3.5
-3.5
300s
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• Q12
The bowling team scores ─ 48 points compared to their earlier match. If there are 6 people on the team, what is the average score difference per person?
8
-8
300s
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• Q13
Ms. Williams 7th grade class goes on a field trip to the science museum. They are there for 2.5 hours. Ms. Williams gives them questions that require them to visit 6 exhibits. How many minutes should they spend at each exhibit?
2.5
25
42
4.2
300s
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• Q14
Francine recorded today’s high temperature as 78.6°F. Today’s low temperature was 4.7°F less than that. How much cooler was today’s low temperature than yesterdays low temperature, which was 77.4°F?
3.5
300s
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• Q15
What is 1/10 as a percentage?
100%
0.10%
10%
1%
300s
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