Let's solve each problem step by step using the number lines and the jumps shown in different colors (green, blue, black). Each jump represents an addend in the addition sentence.
---
Problem 1)
Number Line:
- Green arc: from 0 to 5 → jump of
5
- Blue arc: from 5 to 7 → jump of
2
- Black arc: from 7 to 9 → jump of
2
So:
```
5 + 2 + 2 = 9
```
✔ Answer:
5 + 2 + 2 = 9
---
Problem 2)
Number Line:
- Green arc: from 0 to 6 → jump of
6
- Blue arc: from 6 to 9 → jump of
3
- Black arc: from 9 to 15 → jump of
6
So:
```
6 + 3 + 6 = 15
```
✔ Answer:
6 + 3 + 6 = 15
---
Problem 3)
Number Line:
- Green arc: from 0 to 3 → jump of
3
- Blue arc: from 3 to 6 → jump of
3
- Black arc: from 6 to 12 → jump of
6
So:
```
3 + 3 + 6 = 12
```
✔ Answer:
3 + 3 + 6 = 12
---
Problem 4)
Number Line:
- Green arc: from 0 to 4 → jump of
4
- Blue arc: from 4 to 8 → jump of
4
- Black arc: from 8 to 14 → jump of
6
So:
```
4 + 4 + 6 = 14
```
✔ Answer:
4 + 4 + 6 = 14
---
✔ Final Answers:
1)
5 + 2 + 2 = 9
2)
6 + 3 + 6 = 15
3)
3 + 3 + 6 = 12
4)
4 + 4 + 6 = 14
Each addition sentence is completed based on the length of the colored arcs on the number line. The total sum is the final position reached on the number line.
Parent Tip: Review the logic above to help your child master the concept of number line worksheet 2nd grade.
