Let's solve each integer addition problem using the number line method. The idea is to
start at the first number and then
move left or right based on the second number:
- Moving
right = adding a positive number
- Moving
left = adding a negative number
---
1. -3 + 5 = ?
- Start at
-3
- Add
+5, so move
5 steps to the right
- From -3 → -2 → -1 → 0 → 1 → 2
- End at
2
✔ Answer: 2
---
2. -6 + 3 = ?
- Start at
-6
- Add
+3, so move
3 steps to the right
- From -6 → -5 → -4 → -3
- End at
-3
✔ Answer: -3
---
3. -8 + (-1) = ?
- Start at
-8
- Add
-1, so move
1 step to the left
- From -8 → -9
- End at
-9
✔ Answer: -9
---
4. 4 + 2 = ?
- Start at
4
- Add
+2, so move
2 steps to the right
- From 4 → 5 → 6
- End at
6
✔ Answer: 6
---
5. 3 + (-10) = ?
- Start at
3
- Add
-10, so move
10 steps to the left
- From 3 → 2 → 1 → 0 → -1 → -2 → -3 → -4 → -5 → -6 → -7
- End at
-7
✔ Answer: -7
---
Final Answers:
1. -3 + 5 =
2
2. -6 + 3 =
-3
3. -8 + (-1) =
-9
4. 4 + 2 =
6
5. 3 + (-10) =
-7
You can fill these in the boxes on the worksheet.
Let me know if you'd like a visual explanation with arrows on the number lines!
Parent Tip: Review the logic above to help your child master the concept of adding integers on a number line worksheet.
