Let's solve each subtraction problem using the
number line method, as shown in the worksheet. The idea is to
start at the first number (the minuend) and then
move left by the amount of the second number (the subtrahend), since we are subtracting.
---
🔹 Problem 1: 14 - 4 = ?
We already have this solved as an example:
- Start at
14
- Move
left 4 steps:
14 → 13 → 12 → 11 → 10
- So,
14 - 4 = 10
✔ Answer:
10
---
🔹 Problem 2: 18 - 5 = ?
- Start at
18
- Move
left 5 steps:
18 → 17 → 16 → 15 → 14 → 13
- So,
18 - 5 = 13
✔ Answer:
13
---
🔹 Problem 3: 14 - 4 = ?
This is repeated from the first one.
- Start at
14
- Move
left 4 steps:
14 → 13 → 12 → 11 → 10
- So,
14 - 4 = 10
✔ Answer:
10
---
🔹 Problem 4: 21 - 7 = ?
- Start at
21
- Move
left 7 steps:
21 → 20 → 19 → 18 → 17 → 16 → 15 → 14
- So,
21 - 7 = 14
✔ Answer:
14
---
🔹 Problem 5: 15 - 4 = ?
- Start at
15
- Move
left 4 steps:
15 → 14 → 13 → 12 → 11
- So,
15 - 4 = 11
✔ Answer:
11
---
🔹 Problem 6: 10 - 4 = ?
- Start at
10
- Move
left 4 steps:
10 → 9 → 8 → 7 → 6
- So,
10 - 4 = 6
✔ Answer:
6
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✔ Final Answers:
| Problem | Answer |
|--------|--------|
| 14 - 4 | 10 |
| 18 - 5 | 13 |
| 14 - 4 | 10 |
| 21 - 7 | 14 |
| 15 - 4 | 11 |
| 10 - 4 | 6 |
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📌 How to Use the Number Line:
1. Locate the starting number on the number line.
2. Since you're subtracting, move
to the left.
3. Count the number of steps equal to the number you're subtracting.
4. The number you land on is your answer.
💡 Tip: You can draw small arrows pointing left for each step, just like in the example (with “-1” labels).
Let me know if you'd like a visual version or help drawing the arrows!
Parent Tip: Review the logic above to help your child master the concept of subtraction worksheet with number line.
