Let's solve the
"Missing Numbers" worksheet step by step.
The goal is to fill in the missing numbers in the sequence, where each apple represents a number in order from 1 to 20. The apples are arranged in a grid of 4 rows and 5 columns.
We'll go row by row and identify the missing numbers.
---
Row 1:
- Apple 1: 1
- Apple 2: ❓
- Apple 3: 3
- Apple 4: ❓
- Apple 5: 5
So the sequence is: 1, ?, 3, ?, 5
This is counting by 1s, so:
- After 1 comes 2
- After 3 comes 4
✔ Missing numbers:
2,
4
---
Row 2:
- Apple 6: ❓
- Apple 7: 7
- Apple 8: ❓
- Apple 9: 9
- Apple 10: 10
Sequence: ?, 7, ?, 9, 10
So:
- Before 7 is 6
- Between 7 and 9 is 8
✔ Missing numbers:
6,
8
---
Row 3:
- Apple 11: 11
- Apple 12: ❓
- Apple 13: 13
- Apple 14: ❓
- Apple 15: ❓
Sequence: 11, ?, 13, ?, ?
So:
- After 11 is 12
- After 13 is 14
- After 14 is 15
✔ Missing numbers:
12,
14,
15
---
Row 4:
- Apple 16: ❓
- Apple 17: 17
- Apple 18: ❓
- Apple 19: ❓
- Apple 20: 20
Sequence: ?, 17, ?, ?, 20
So:
- Before 17 is 16
- After 17 is 18
- After 18 is 19
✔ Missing numbers:
16,
18,
19
---
Final Answer:
Now let's fill in all the blanks:
```
Row 1: 1 2 3 4 5
Row 2: 6 7 8 9 10
Row 3: 11 12 13 14 15
Row 4: 16 17 18 19 20
```
---
✔ Completed Worksheet:
| | | | | |
|-------|-------|-------|-------|-------|
| 1 |
2 | 3 |
4 | 5 |
|
6 | 7 |
8 | 9 | 10 |
| 11 |
12| 13 |
14|
15|
|
16| 17 |
18|
19| 20 |
---
🟩 Summary:
The missing numbers are:
- Row 1: 2, 4
- Row 2: 6, 8
- Row 3: 12, 14, 15
- Row 4: 16, 18, 19
All numbers from 1 to 20 are now complete in order.
This exercise helps children practice
number sequencing and
counting skills.
Let me know if you'd like this as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of free number worksheet 1 20.
