Let’s solve each problem step by step. We’re adding integers — that means positive and negative numbers.
Remember the rules from the top of the sheet:
- Positive + Positive = Just add them (like 5 + 3 = 8)
- Negative + Negative = Add their absolute values, keep the negative sign (like -4 + (-2) = -6)
- Positive + Negative (or vice versa): Subtract the smaller number from the bigger one, and use the sign of the bigger number.
Let’s go one by one:
1.
80 + 76 → Both positive → 80 + 76 =
156
2.
98 + (-54) → Positive + Negative → Subtract: 98 - 54 = 44 → Since 98 is bigger and positive →
+44
3.
-14 + 31 → Negative + Positive → Subtract: 31 - 14 = 17 → 31 is bigger and positive →
+17
4.
79 + 30 → Both positive → 79 + 30 =
109
5.
39 + 13 → Both positive → 39 + 13 =
52
6.
-14 + (-71) → Both negative → Add absolute values: 14 + 71 = 85 → Keep negative →
-85
7.
-7 + (-57) → Both negative → 7 + 57 = 64 → Keep negative →
-64
8.
-24 + (-64) → Both negative → 24 + 64 = 88 → Keep negative →
-88
9.
-40 + (-54) → Both negative → 40 + 54 = 94 → Keep negative →
-94
10.
-2 + (-68) → Both negative → 2 + 68 = 70 → Keep negative →
-70
11.
97 + (-9) → Positive + Negative → 97 - 9 = 88 → 97 is bigger and positive →
+88
12.
85 + (-2) → Positive + Negative → 85 - 2 = 83 → 85 is bigger and positive →
+83
All answers checked carefully.
Final Answer:
1. 156
2. 44
3. 17
4. 109
5. 52
6. -85
7. -64
8. -88
9. -94
10. -70
11. 88
12. 83
Parent Tip: Review the logic above to help your child master the concept of integer rules worksheet.
