Let's solve each caterpillar sequence step by step. The task is to
count in 2s, 5s, or 10s and fill in the missing numbers.
---
Top Left Caterpillar
Sequence:
2, _, 6, _, 10, _
- Starts at 2.
- Next number after 2 should be
4 (since 2 + 2 = 4).
- Then 6 → next is
8 (6 + 2 = 8).
- Then 10 → next is
12 (10 + 2 = 12).
✔ So the pattern is counting in
2s.
Answer: 2,
4, 6,
8, 10,
12
---
Top Right Caterpillar
Sequence:
12, 10, _, _, _, 2
- Starts at 12, then goes down to 10 → difference is -2.
- So it’s counting
down in 2s.
- After 10: 8, 6, 4, then 2.
So the sequence is: 12, 10,
8,
6,
4, 2
✔ Counting
backwards in 2s.
Answer: 12, 10,
8,
6,
4, 2
---
Middle Left Caterpillar
Sequence:
35, _, 45, _, 55, _
- From 35 to 45 is +10.
- Then 45 to 55 is +10.
- So it's counting in
10s.
Fill in:
- After 35 →
40
- After 45 →
50
- After 55 →
60
Answer: 35,
40, 45,
50, 55,
60
---
Middle Right Caterpillar
Sequence:
_, _, 20, 15, _, _
- From 20 to 15 is -5 → so counting
backwards in 5s.
- Before 20: 25
- Before 25: 30
- After 15: 10, then 5
So the full sequence:
30, 25, 20, 15, 10, 5
Answer: 30,
25, 20, 15,
10,
5
---
Bottom Left Caterpillar
Sequence:
14, 24, _, _, _, 64
- From 14 to 24 is +10.
- So likely counting in
10s.
- After 24: 34, 44, 54, then 64.
Check: 14 → 24 → 34 → 44 → 54 → 64
✔
Answer: 14, 24,
34,
44,
54, 64
---
Bottom Right Caterpillar
Sequence:
_, 90, _, 70, _, _
- From 90 to 70 is a drop of 20, but only one number between them.
- Let's look at the pattern:
- 90, then blank, then 70 → if counting in 10s backwards: 90 → 80 → 70
- So it's counting
backwards in 10s.
- Before 90: 100
- After 70: 60, 50
So the sequence:
100, 90, 80, 70, 60, 50
Answer: 100, 90,
80, 70,
60,
50
---
✔ Final Answers:
| Caterpillar | Sequence |
|------------|----------|
| Top Left | 2,
4, 6,
8, 10,
12 |
| Top Right | 12, 10,
8,
6,
4, 2 |
| Middle Left| 35,
40, 45,
50, 55,
60 |
| Middle Right|
30,
25, 20, 15,
10,
5 |
| Bottom Left| 14, 24,
34,
44,
54, 64 |
| Bottom Right|
100, 90,
80, 70,
60,
50 |
---
🔍 Summary of Patterns:
-
2s: Top left & top right (forward and backward)
-
5s: Middle right (backward)
-
10s: Middle left, bottom left, bottom right (forward and backward)
All sequences follow consistent counting patterns in 2s, 5s, or 10s — just need to identify the direction (up or down) and increment.
Parent Tip: Review the logic above to help your child master the concept of counting by 5s and 10s worksheet.
