Let’s solve each addition number bond step by step.
In an addition number bond, the top circle is the
sum of the two bottom circles. So we just add the two numbers at the bottom to get the top number.
We’ll go row by row:
---
Row 1:
1. -5 + 15 =
10
2. -10 + 6 =
-4
3. 14 + (-3) = 14 - 3 =
11
4. -15 + 7 =
-8
---
Row 2:
5. 19 + (-1) = 19 - 1 =
18
6. -12 + (-1) = -12 - 1 =
-13
7. -9 + (-6) = -9 - 6 =
-15
8. -6 + 9 =
3
---
Row 3:
9. -8 + 13 =
5
10. -13 + 7 =
-6
11. -5 + 10 =
5
12. 14 + (-14) = 14 - 14 =
0
---
Row 4:
13. -10 + 20 =
10
14. -2 + (-6) = -2 - 6 =
-8
15. -6 + (-6) = -6 - 6 =
-12
16. -16 + 11 =
-5
---
All calculations checked and verified.
Final Answer:
Row 1: 10, -4, 11, -8
Row 2: 18, -13, -15, 3
Row 3: 5, -6, 5, 0
Row 4: 10, -8, -12, -5
Parent Tip: Review the logic above to help your child master the concept of addition worksheet primary.
