Rational Number Operations
Authored by Kristen Wang
Mathematics
7th Grade
Used 7+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which situation does not describe a final value of 0?
A balloon rose to a height of 700 feet above the ground. It then dropped 475 feet and then dropped another 225 feet.
The temperature at 10 a.m. was 2° F. During the next 3 hours it rose 8 degrees only to drop down 10 degrees.
After the first round in a game Percy’s score was –13. He then scored 6 points in the next round and an additional 7 points in the third round.
Chelsea’s bank account had $400 at the beginning of the week. She deposited $200 on Monday, withdrew $550 on Tuesday and withdrew an additional $150 on Wednesday.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which expression is equivalent to 0?
eight less than ten minus two
negative eleven plus seven plus five
twenty-two minus forty plus nineteen
negative seventeen minus two plus fifteen
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which situation results in a final value of exactly zero?
A student earned $7.50 for each of 8 hours of work. He used $60 of this money to buy school supplies.
The temperature outside was 15° below 0 at 7:00 a.m. The temperature rose 3° in each of the next 4 hours.
A scuba diver descended for 2.4 minutes at a rate of 30 feet per minute. The diver ascended for 1.2 minutes at a rate of 15 feet per minute.
A baker received an order to bake 120 cupcakes. The baker completed the order by baking 24 cupcakes every 30 minutes over a period of 5 hours.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which point on the number line represents the number that can be added to −3 to result in zero?
Point A
Point B
Point C
Point D
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The high temperature on Monday was −14°F. On Tuesday, the high temperature was 24°F. Which integer represents the difference in high temperatures on these 2 days?
−38°F
−10°F
10°F
38°F
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Jasper has $45 less in his bank account this week than he did six weeks ago. Which of the following expressions can be used to determine the average weekly change in Jasper's bank account balance during the past six weeks? Select all of the expressions that correctly represent this average weekly change.
- (45 ÷ 6)
(-6) ÷ (-45)
6 ÷ (-45)
- (6 ÷ 45)
(-45) ÷ 6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Orlando and Daisy ordered a pizza for lunch. Orlando ate 1/2 of the pizza, and Daisy ate 3/8 of the pizza. What fraction of the pizza did they eat altogether?
3/10
7/8
3/16
4/3
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