Integer Operations Quiz

Grade 6 · Math · Quiz

Practice adding, subtracting, multiplying, and dividing integers.

Questions

1. What is (-12) + (-5)?

   1. -17
   2. 17
   3. -7
   4. 7
   Show answer

   Answer: -17

   Same signs (both negative): add absolute values 12+5=17, keep negative. Answer: -17.

2. (-9) × 6 = ___

   Show answer

   Answer: -54

   Different signs → negative. 9×6=54, so the answer is -54.

3. What is -3 - 8?

   1. -11
   2. 11
   3. 5
   4. -5
   Show answer

   Answer: -11

   KCC: -3 + (-8). Same signs → add: 3+8=11, keep negative. Answer: -11.

4. (-6) ÷ (-2) = 3

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   Answer: True

   Same signs (both negative) → positive. 6÷2=3, so (-6)÷(-2)=3.

5. What is 7 + (-15)?

   1. -8
   2. 8
   3. -22
   4. 22
   Show answer

   Answer: -8

   Different signs: |15|-|7|=8, keep sign of larger absolute value (negative). Answer: -8.

6. The opposite (additive inverse) of -13 is ___.

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   Answer: 13

   The additive inverse of any number n is -n. The opposite of -13 is +13.

7. Which expression equals a positive number?

   1. (-5) × (-4)
   2. (-5) × 4
   3. 5 × (-4)
   4. (-5) + (-4)
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   Answer: (-5) × (-4)

   Same signs (both negative) → positive. The other options have different signs → negative.

8. Subtracting a negative number is the same as adding a positive number.

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   Answer: True

   KCC rule: subtracting a negative flips to adding a positive. 5-(-3) = 5+3.

9. What is (-4) - (-9)?

   1. 5
   2. -5
   3. 13
   4. -13
   Show answer

   Answer: 5

   KCC: -4 + (+9). Different signs: 9-4=5, keep sign of larger (positive). Answer: 5.

10. What is (-48) ÷ (-8)?

    1. 6
    2. -6
    3. 40
    4. -40
    Show answer

    Answer: 6

    Same signs (both negative) → positive. 48÷8=6, so (-48)÷(-8)=6.

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