Let’s solve each part step by step.
---
Part a)
Friday: 8,212 people
Sunday: 5,289 people
Total = 8,212 + 5,289
Let’s add:
```
8212
+ 5289
------
```
Start from right to left:
- 2 + 9 = 11 → write 1, carry 1
- 1 + 8 + 1 (carry) = 10 → write 0, carry 1
- 2 + 2 + 1 (carry) = 5
- 8 + 5 = 13 → write 13
So total is
13,501
✔ Check: 8,212 + 5,289 = 13,501 — correct.
---
Part b)
East side: 3,568
West side: 2,547
Total = 3,568 + 2,547
Add:
```
3568
+ 2547
------
```
Right to left:
- 8 + 7 = 15 → write 5, carry 1
- 6 + 4 + 1 = 11 → write 1, carry 1
- 5 + 5 + 1 = 11 → write 1, carry 1
- 3 + 2 + 1 = 6
Total =
6,115
✔ Check: 3,568 + 2,547 = 6,115 — correct.
---
Part c)
December: 6,328 flights
January: 3,779 flights
Total = 6,328 + 3,779
Add:
```
6328
+ 3779
------
```
Right to left:
- 8 + 9 = 17 → write 7, carry 1
- 2 + 7 + 1 = 10 → write 0, carry 1
- 3 + 7 + 1 = 11 → write 1, carry 1
- 6 + 3 + 1 = 10 → write 10
Total =
10,107
✔ Check: 6,328 + 3,779 = 10,107 — correct.
---
Final Answer:
a) 13,501
b) 6,115
c) 10,107
Parent Tip: Review the logic above to help your child master the concept of addition with regrouping worksheet 4th.
