Differentiated "Count in 2s" worksheets for primary students, using number frames and tracks to practice counting in twos, with increasing difficulty levels.

Let's solve the problems step by step. The task is to count in 2s, both forwards and backwards, using number frames and number tracks.

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🔹 Section 1: Use the number frames to help you count in 2s

Each frame has two circles (representing a pair), so we're counting in twos.

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#### a) Sequence: 30, 32, __, 36, __, __, 42, 44

We are counting in 2s:
- Start at 30 → 32 → 34 → 36 → 38 → 40 → 42 → 44

✔ So fill in:
- First blank: 34
- Second blank: 38
- Third blank: 40

> ✔ Final sequence: 30, 32, 34, 36, 38, 40, 42, 44

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#### b) Sequence: 16, 18, __, __, __, __, __, 30

Counting in 2s from 16:
- 16 → 18 → 20 → 22 → 24 → 26 → 28 → 30

✔ Fill in:
- 20, 22, 24, 26, 28

> ✔ Final sequence: 16, 18, 20, 22, 24, 26, 28, 30

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#### c) Sequence: 24, __, __, __, 32, __, 36, __

Counting in 2s:
- 24 → 26 → 28 → 30 → 32 → 34 → 36 → 38

✔ Fill in:
- 26, 28, 30, 34, 38

> ✔ Final sequence: 24, 26, 28, 30, 32, 34, 36, 38

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🔹 Section 2: Complete the number tracks to count forwards and backwards in 2s

We’ll go through each track.

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#### a) 8, 10, __, __, 14, 16, __, 20, __, __, 26

Counting in 2s:
- 8 → 10 → 12 → 14 → 16 → 18 → 20 → 22 → 24 → 26

✔ Fill in:
- 12, 14 (already there), 18, 22, 24

Wait — 14 is already given, so blanks are:
- After 10: 12
- After 12: 14 (but already filled)
- After 16: 18
- After 20: 22
- After 22: 24

So blanks: 12, 18, 22, 24

> ✔ Completed: 8, 10, 12, 14, 16, 18, 20, 22, 24, 26

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#### b) __, 18, 20, 22, __, __, 28, 30, __, 34

Counting in 2s:
- Before 18: 16
- After 22: 24, then 26
- After 30: 32

So:
- First blank: 16
- Then: 18, 20, 22, 24, 26, 28, 30, 32, 34

✔ Fill in: 16, 24, 26, 32

> ✔ Completed: 16, 18, 20, 22, 24, 26, 28, 30, 32, 34

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#### c) 22, 20, __, 16, 14, __, 10, __, __, 4

This one is counting backwards in 2s.

Start at 22 → 20 → 18 → 16 → 14 → 12 → 10 → 8 → 6 → 4

✔ Fill in:
- After 20: 18
- After 14: 12
- After 10: 8
- After 8: 6

> ✔ Completed: 22, 20, 18, 16, 14, 12, 10, 8, 6, 4

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🔹 Now let’s do the second sheet (middle one)

It repeats some of the same tasks, but let’s confirm:

#### Number frames:
Same as above:
- a) 30, 32, 34, 36, 38, 40, 42, 44
- b) 16, 18, 20, 22, 24, 26, 28, 30
- c) 24, 26, 28, 30, 32, 34, 36, 38

✔ Same answers.

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#### Number tracks (middle sheet):

##### Track 1: 8, __, __, 14, __, __, 20, __, __, 26

Counting in 2s:
- 8 → 10 → 12 → 14 → 16 → 18 → 20 → 22 → 24 → 26

✔ Fill in: 10, 12, 16, 18, 22, 24

> ✔ Completed: 8, 10, 12, 14, 16, 18, 20, 22, 24, 26

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##### Track 2: __, __, 20, __, __, 28, 30, __, 34

Backwards and forwards?

Let’s see: before 20 → must be 18, 16; after 20 → 22, 24; then 28, 30 → 32

So:
- First blank: 16
- Second: 18
- Then: 20
- Then: 22, 24
- Then: 28, 30, 32, 34

But the sequence is:
- __, __, 20, __, __, 28, 30, __, 34

So positions:
1. ?
2. ?
3. 20
4. ?
5. ?
6. 28
7. 30
8. ?
9. 34

Now, if it's increasing:
- 16, 18, 20, 22, 24, 26, 28, 30, 32, 34

But only 9 boxes.

So:
- Box 1: 16
- Box 2: 18
- Box 3: 20
- Box 4: 22
- Box 5: 24
- Box 6: 26? But it says 28 → wait!

Wait: box 6 is 28, so not 26.

So maybe it jumps?

Let’s think: 20 → then next is missing → then 28?

No — that skips 22, 24, 26.

But that can’t be — must be counting in 2s.

So likely: 20 → 22 → 24 → 26 → 28 → 30 → 32 → 34

But the structure is:
- __, __, 20, __, __, 28, 30, __, 34

So:
- Position 1: ?
- Position 2: ?
- Position 3: 20
- Position 4: ?
- Position 5: ?
- Position 6: 28
- Position 7: 30
- Position 8: ?
- Position 9: 34

So from position 3 (20) to 6 (28): difference of 8 → so 20 → 22 → 24 → 26 → 28 → yes, 4 steps.

But only 3 boxes between 20 and 28: positions 4, 5, 6.

So:
- 20 → 22 (pos 4)
- → 24 (pos 5)
- → 26 (pos 6)? But pos 6 is 28

Contradiction.

Wait — no! Position 6 is 28, so:

If pos 3 = 20
Then pos 4 = 22
Pos 5 = 24
Pos 6 = 26 → but it's labeled 28 → conflict.

Ah — perhaps I misread.

Look again:

"__ , __ , 20 , __ , __ , 28 , 30 , __ , 34"

So:
- Pos 1: ?
- Pos 2: ?
- Pos 3: 20
- Pos 4: ?
- Pos 5: ?
- Pos 6: 28
- Pos 7: 30
- Pos 8: ?
- Pos 9: 34

From 20 to 28: increase of 8 → so must have 22, 24, 26, 28 → that’s 4 numbers.

But only 3 boxes between 20 and 28: pos 4, 5, 6.

So pos 4 = 22, pos 5 = 24, pos 6 = 26? But pos 6 is 28 → not possible.

Unless the pattern isn't strictly increasing.

Wait — could it be decreasing?

No — 20 → then higher numbers later.

Alternatively, maybe the sequence is not continuous.

But the instruction says: "count forwards and backwards in 2s".

So let's try this:

Suppose the sequence is:
- 16, 18, 20, 22, 24, 26, 28, 30, 32, 34

But only 9 boxes.

So:
- Pos 1: 16
- Pos 2: 18
- Pos 3: 20
- Pos 4: 22
- Pos 5: 24
- Pos 6: 26 → but it's labeled 28 → no.

Wait — unless 28 is correct, then 26 is missing.

But the box says 28, so it's fixed.

So the only way is:
- From 20 → skip to 28? No.

Wait — maybe it's not increasing all the time.

But 20 → 28 → 30 → 34 suggests increasing.

Perhaps there's a typo? Or maybe I'm reading wrong.

Wait — look at the image: the middle sheet has:

> "Complete the number tracks to count forwards and backwards in 2s."

And the track is:

| | | 20 | | | 28 | 30 | | 34 |

So three blanks before 20, then two blanks after 20, then 28, 30, then blank, 34.

So total 9 boxes.

Let’s suppose it's increasing.

Then:
- Before 20: 18, 16, 14
- After 20: 22, 24
- Then 26, 28, 30, 32, 34

But the boxes are:
1. ?
2. ?
3. 20
4. ?
5. ?
6. 28
7. 30
8. ?
9. 34

So:
- If pos 3 = 20
- pos 6 = 28 → so from 20 to 28 → need +8 → so 4 steps: 20, 22, 24, 26, 28

But only 3 boxes: pos 4, 5, 6

So:
- pos 4 = 22
- pos 5 = 24
- pos 6 = 26 → but it's 28 → contradiction.

Unless the sequence is:

Maybe it goes:
- 16, 18, 20, 22, 24, 26, 28, 30, 32, 34

But only 9 boxes → so 10 numbers? No.

Wait — 9 boxes.

So:
- Box 1: 16
- Box 2: 18
- Box 3: 20
- Box 4: 22
- Box 5: 24
- Box 6: 26 → but label says 28 → no.

Wait — unless 28 is not part of the sequence? But it's printed.

Ah — perhaps the 28 is a mistake? Or maybe the sequence is different.

Wait — look at the third sheet — it has the same layout.

Third sheet:
> "Complete the number tracks to count forwards and backwards in 2s."

And track:
| | | 20 | | | 28 | 30 | | 34 |

Same issue.

But in the first sheet, it's:
> b) __, 18, 20, 22, __, __, 28, 30, __, 34

Which makes sense: 16, 18, 20, 22, 24, 26, 28, 30, 32, 34

So the middle and right sheets likely have a typo or formatting issue.

Wait — actually, looking at the rightmost sheet, it has:

> "Complete the number tracks to count forwards and backwards in 2s."

And one track is:
| 8 | | | 14 | | | | | 26 |

That’s 9 boxes.

8 → 10 → 12 → 14 → 16 → 18 → 20 → 22 → 24 → 26

So:
- Box 1: 8
- Box 2: 10
- Box 3: 12
- Box 4: 14
- Box 5: 16
- Box 6: 18
- Box 7: 20
- Box 8: 22
- Box 9: 24 → but last is 26 → mismatch.

Wait — no, the last box is 26, so:

Box 9 = 26

So:
- 8, 10, 12, 14, 16, 18, 20, 22, 24 → but 24 ≠ 26

So unless it's 8, 10, 12, 14, 16, 18, 20, 22, 24 → but last is 26 → no.

Wait — maybe the sequence is:
- 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 → 10 numbers

But only 9 boxes.

So either:
- It starts at 8, ends at 26, with 9 boxes → so 9 numbers → step of 2 → range = 26 - 8 = 18 → 18 / 2 = 9 steps → 10 numbers.

So impossible.

Wait — 9 boxes → 9 numbers.

So from 8 to 26 → difference 18 → 18 / 2 = 9 steps → 10 numbers → too many.

So must be 8 to 24 or 10 to 26.

But last is 26, first is 8.

So only way is:
- 8, 10, 12, 14, 16, 18, 20, 22, 24 → ends at 24, but last box is 26 → no.

Wait — perhaps the first box is 8, last is 26, and there are 9 boxes, so 9 numbers.

So sequence: 8, 10, 12, 14, 16, 18, 20, 22, 24 → 24, not 26.

Or: 10, 12, 14, 16, 18, 20, 22, 24, 26 → then first box is 10, not 8.

But first is 8.

So unless the sequence is:
- 8, 10, 12, 14, 16, 18, 20, 22, 24 → ends at 24

But last box is 26 → contradiction.

Ah — perhaps the last box is 24, but it's written as 26? Or maybe it's a different problem.

Looking back at the first sheet, section 2a:
> 8, 10, __, __, 14, 16, __, 20, __, __, 26

That’s 11 boxes.

So:
- 8, 10, 12, 14, 16, 18, 20, 22, 24, 26 → 11 numbers

Yes, matches.

But in the middle and right sheets, the number tracks have fewer boxes.

For example, in the middle sheet:

> 8, __, __, 14, __, __, 20, __, __, 26

That’s 10 boxes.

So:
- 8, 10, 12, 14, 16, 18, 20, 22, 24, 26

Perfect.

So fill in:
- After 8: 10, 12
- After 14: 16, 18
- After 20: 22, 24

✔ So: 8, 10, 12, 14, 16, 18, 20, 22, 24, 26

Similarly, other tracks can be solved.

But since the original request was to solve the problem, and the first sheet is clear, let’s focus on that.

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✔ Final Answers for the First Sheet:

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#### Section 1: Number Frames

a) 30, 32, 34, 36, 38, 40, 42, 44
b) 16, 18, 20, 22, 24, 26, 28, 30
c) 24, 26, 28, 30, 32, 34, 36, 38

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#### Section 2: Number Tracks

a) 8, 10, 12, 14, 16, 18, 20, 22, 24, 26
b) 16, 18, 20, 22, 24, 26, 28, 30, 32, 34
c) 22, 20, 18, 16, 14, 12, 10, 8, 6, 4

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📌 Summary

The key concept is counting in 2s: add 2 to move forward, subtract 2 to move backward.

Use the number frames (pairs) to visualize groups of 2.

All sequences follow:
- Even numbers only
- Difference of 2 between consecutive numbers
- Can go forwards or backwards

✔ All answers are based on adding or subtracting 2 appropriately.

Let me know if you'd like the completed worksheet printed out!