1. What is (+5) + (+3)?
- A8
- B2
- C-8
- D15
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Answer: A) 8
Both integers are positive, so add them: 5 + 3 = 8.
Class 6 Addition of Integers — practice questions with answers
Integers · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. What is (+18) + (-18) + (+7)?
- A7
- B-7
- C43
- D0
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Answer: A) 7
18 + (-18) = 0, then 0 + 7 = 7.
3. Fill in the box: (box) + (-9) = -15. What integer goes in the box?
- A-5
- B-6
- C-12
- D-7
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Answer: B) -6
We need ? + (-9) = -15, so ? = -15 + 9 = -6. Check: -6 + (-9) = -15.
4. Two integers are added. One is -18.
Their sum is +5.
What is the other integer?
Their sum is +5.
What is the other integer?
- A25
- B46
- C23
- D21
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Answer: C) 23
Let the other be x: -18 + x = 5, so x = 5 + 18 = 23. Check: -18 + 23 = 5.
5. In a game spread over four rounds, a player's points change by: round 1 +18, round 2 -25, round 3 +12, round 4 unknown.
If the player's total after all four rounds is exactly 0, what must the round-4 change be?
If the player's total after all four rounds is exactly 0, what must the round-4 change be?
- A-10
- B-4
- C-6
- D-5
Show answer
Answer: D) -5
First three rounds: 18 + (-25) + 12 = 5. For the total to be 0, round 4 must be -5, since 5 + (-5) = 0.
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