8/21 Adding and Subtracting Rational Numbers
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
+3
Standards-aligned
Lauren Vincent
Used 4+ times
FREE Resource
7 Slides • 11 Questions
1
2
3
Multiple Choice
Which of the following statements best describes how positive and negative numbers control the robot in the Robotics Club?
Positive numbers move the robot forward, negative numbers move it backward.
Negative numbers move the robot forward, positive numbers move it backward.
Both positive and negative numbers move the robot forward.
Only positive numbers control the robot's movement.
4
5
Fill in the Blanks
Michael enters the following numbers into the robot: 3, 6, -20, 5, -12. This test is conducted on a number line starting at 0. If the robot is facing positive numbers, where will the robot land on the number line when the test is complete?
6
Multiple Choice
What is the sum of the numbers 3, 6, -20, 5, and -12?
-18
-8
-10
-16
7
8
Fill in the Blanks
For the next test, Alonzo sets the robot at -5. It is still facing positive numbers. Alonzo enters the following numbers in the control unit: -12.5, 8, 7, -6.25. What number will the robot land on the number line when the test is complete?
9
10
Open Ended
Will the sequence of numbers 2.5, 1.5, and 4.25 entered when the robot is at -8.75 get the robot back to zero? How do you know?
11
12
13
Multiple Choice
What is the result of evaluating -12.4 - (-5.7)?
-6.7
-18.1
-7.7
6.7
14
Multiple Choice
Which of the following expressions is equivalent to -12.4 - (-5.7)?
-12.4 + 5.7
-12.4 - 5.7
12.4 + 5.7
-12.4 + (-5.7)
15
Open Ended
Evaluate the expression: 10 3 1+ (−5 91)
16
Multiple Choice
What was the overall profit or loss for the first four months the coffee shop was open?
-$1,135.80
+ $3,298.63
+ $3,216.13
-$4,507.06
17
Open Ended
Luke opened a savings account and deposited $20 in it. Over the next two weeks, he made two additional deposits of $15 and $35. At the end of the month, he made a withdrawal that brought his balance down to $0. How much money did Luke withdraw at the end of the month?
18
Multiple Choice
Issac, Bryan, and Alyssa gather pecans to shell for their mother. Isaac gathers 483 pounds, Bryan gathers 3.25 pounds, and Alyssa gathers 2 21 pounds. If they all place their pecans in the same bucket, how many pounds of pecans are in the bucket?
9 1/8 pounds
9 5/8 pounds
10 1/4 pounds
10 1/8 pounds
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