Let's solve the
Number Bonds worksheet step by step.
In a number bond, the
total (the large circle) is the sum of the two smaller numbers connected to it. So:
>
Total = Part 1 + Part 2
We need to
fill in the missing number in each bond. We'll go through each one.
---
Row 1
1.
16 with
8 and a blank
→ 16 - 8 =
8
✔ Missing number:
8
2.
14 with
12 and a blank
→ 14 - 12 =
2
✔ Missing number:
2
3. Blank with
8 and
12
→ 8 + 12 =
20
✔ Missing number:
20
---
Row 2
4. Blank with
15 and
5
→ 15 + 5 =
20
✔ Missing number:
20
5. Blank with
10 and
10
→ 10 + 10 =
20
✔ Missing number:
20
6.
13 with
8 and a blank
→ 13 - 8 =
5
✔ Missing number:
5
---
Row 3
7.
15 with
7 and a blank
→ 15 - 7 =
8
✔ Missing number:
8
8. Blank with
15 and
3
→ 15 + 3 =
18
✔ Missing number:
18
9.
16 with
11 and a blank
→ 16 - 11 =
5
✔ Missing number:
5
---
Row 4
10.
18 with
10 and a blank
→ 18 - 10 =
8
✔ Missing number:
8
11.
12 with
6 and a blank
→ 12 - 6 =
6
✔ Missing number:
6
12. Blank with
14 and
6
→ 14 + 6 =
20
✔ Missing number:
20
---
✔ Final Answers (in order):
1. 8
2. 2
3. 20
4. 20
5. 20
6. 5
7. 8
8. 18
9. 5
10. 8
11. 6
12. 20
---
📝 Summary Table (for clarity):
| Problem | Missing Number |
|--------|----------------|
| 16, 8, ? | 8 |
| 14, ?, 12 | 2 |
| ?, 8, 12 | 20 |
| ?, 15, 5 | 20 |
| ?, 10, 10 | 20 |
| 13, ?, 8 | 5 |
| 15, 7, ? | 8 |
| ?, 15, 3 | 18 |
| 16, ?, 11 | 5 |
| 18, 10, ? | 8 |
| 12, 6, ? | 6 |
| ?, 14, 6 | 20 |
---
✔ All solved! The key idea is that
number bonds represent addition and subtraction relationships: if you know the total and one part, subtract to find the other. If both parts are known, add them to get the total.
Let me know if you'd like this as a printable or visual format!
Parent Tip: Review the logic above to help your child master the concept of number bond worksheet to 10.
