Let's solve each of these integer addition problems step by step.
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Left Column:
1.
(+8) + (-2)
Adding a negative is the same as subtracting:
$ 8 - 2 = 6 $
✔ Answer: 6
2.
(-6) + (-9)
Both are negative, so add their absolute values and keep the negative sign:
$ -6 - 9 = -15 $
✔ Answer: -15
3.
(-5) + (+7)
One negative, one positive. Subtract smaller from larger (7 - 5 = 2), and take the sign of the larger number (positive):
$ -5 + 7 = 2 $
✔ Answer: 2
4.
(-4) + (+3)
Subtract: 4 - 3 = 1, and since -4 has the larger absolute value, answer is negative:
$ -4 + 3 = -1 $
✔ Answer: -1
5.
(+9) + (-4)
$ 9 - 4 = 5 $
✔ Answer: 5
6.
(+3) + (+9)
Both positive: $ 3 + 9 = 12 $
✔ Answer: 12
7.
(+6) + (+3)
$ 6 + 3 = 9 $
✔ Answer: 9
8.
(+4) + (-5)
$ 4 - 5 = -1 $
✔ Answer: -1
9.
(-3) + (+5)
$ -3 + 5 = 2 $
✔ Answer: 2
10.
(+9) + (+1)
$ 9 + 1 = 10 $
✔ Answer: 10
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Right Column:
1.
6 + (-1)
$ 6 - 1 = 5 $
✔ Answer: 5
2.
-4 + 7
$ -4 + 7 = 3 $
✔ Answer: 3
3.
3 + (-1)
$ 3 - 1 = 2 $
✔ Answer: 2
4.
7 + (-1)
$ 7 - 1 = 6 $
✔ Answer: 6
5.
2 + (-2)
$ 2 - 2 = 0 $
✔ Answer: 0
6.
-9 + (-1)
$ -9 - 1 = -10 $
✔ Answer: -10
7.
-5 + (-7)
$ -5 - 7 = -12 $
✔ Answer: -12
8.
-1 + 2
$ -1 + 2 = 1 $
✔ Answer: 1
9.
6 + (-5)
$ 6 - 5 = 1 $
✔ Answer: 1
10.
-7 + (-7)
$ -7 - 7 = -14 $
✔ Answer: -14
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✔ Final Answers:
####
Left Column:
1. (+8) + (-2) =
6
2. (-6) + (-9) =
-15
3. (-5) + (+7) =
2
4. (-4) + (+3) =
-1
5. (+9) + (-4) =
5
6. (+3) + (+9) =
12
7. (+6) + (+3) =
9
8. (+4) + (-5) =
-1
9. (-3) + (+5) =
2
10. (+9) + (+1) =
10
####
Right Column:
1. 6 + (-1) =
5
2. -4 + 7 =
3
3. 3 + (-1) =
2
4. 7 + (-1) =
6
5. 2 + (-2) =
0
6. -9 + (-1) =
-10
7. -5 + (-7) =
-12
8. -1 + 2 =
1
9. 6 + (-5) =
1
10. -7 + (-7) =
-14
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📌 Key Rules Used:
-
Same signs: Add absolute values, keep the sign.
-
Different signs: Subtract smaller from larger, take the sign of the larger absolute value.
- Adding a negative is the same as subtraction.
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Parent Tip: Review the logic above to help your child master the concept of adding integers worksheet with answer key.
