Find the Additive Inverse of Expressions

Quiz
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
Barbara White
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Mason and Scarlett are having a friendly math duel! Can you join the fun and help them discover what magical result appears when you add a number to its opposite?
The number itself
0
Double the number
Half the number
Answer explanation
When you add a number to its opposite (e.g., x + (-x)), the result is always 0. This is because the two numbers cancel each other out, confirming that the correct answer is 0.
Tags
CCSS.7.NS.A.1B
2.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
10
-5
0
5
Answer explanation
The additive inverse of a number is what you add to it to get zero. For x = 5, the additive inverse is -5, since 5 + (-5) = 0. Therefore, the magical number is -5.
Tags
CCSS.7.NS.A.1B
3.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Priya and Jackson are on a quest to find magical number pairs! Can you join them in discovering which of the following pairs are true additive inverses?
4 and 4
6 and -6
-2 and 2
8 and 0
Answer explanation
Additive inverses are pairs of numbers that sum to zero. The pair 6 and -6 is correct because 6 + (-6) = 0. The other pairs do not satisfy this condition.
Tags
CCSS.7.NS.A.1B
4.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
-14
0
7
14
Answer explanation
The additive inverse of -7 is 7. When you add -7 and 7 together, the result is 0. Therefore, the correct answer is 0.
Tags
CCSS.7.NS.A.1B
5.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Hey math wizards! Scarlett and William are having a friendly math duel. Can you help them figure out which of the following magical expressions equals 0?
Answer explanation
The expression 5 + (-5) equals 0 because adding a number and its negative results in zero. The other options do not equal zero: 3 + 3 = 6, -2 + 2 + 1 = 1, and 4 - 4 + 4 = 4.
Tags
CCSS.7.NS.A.1B
6.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Liam and Ava are on a whimsical adventure with a magical balloon that floats 50 meters above the ground. Suddenly, the mischievous balloon decides to descend 50 meters. Can you guess where it lands?
50 meters above the ground
0 meters (at ground level)
50 meters below the ground
100 meters above the ground
Answer explanation
The balloon starts at 50 meters above the ground and descends 50 meters. This means it moves down to ground level, which is 0 meters. Therefore, the correct answer is 0 meters (at ground level).
Tags
CCSS.6.NS.C.5
7.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
-10
10
0
20
Answer explanation
The magical additive inverse of y = -10 is 10. When you add -10 and 10 together, the result is 0. Therefore, the sum of y and its additive inverse is 0.
Tags
CCSS.7.NS.A.1B
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