Counting in 3s worksheet activity for kids to practice number sequencing.

You're given a worksheet titled “Counting in 3s”. The task is to:

> *Cut out the numbers in the dashed boxes and stick them in the correct order.*

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🔍 Step 1: Understand the Pattern

“Counting in 3s” means listing multiples of 3 in ascending order:

3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45

These are all the numbers you’ll be working with — they’re already printed in the dashed box at the bottom of the worksheet.

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🧩 Step 2: Identify the Grid Layout

The grid has 3 rows and 5 columns (so 15 total boxes). You need to fill them from left to right, top to bottom, with the multiples of 3 in order.

Some numbers are already placed as hints:

- Top-left box: `3` → Correct! That’s the first multiple.
- Middle row, second box: `24` → That’s the 8th multiple (3×8).
- Bottom row, last box: `45` → That’s the 15th multiple (3×15).

This confirms the sequence should go left-to-right, top-to-bottom.

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✔ Step 3: Fill in the Missing Numbers in Order

Here’s the complete grid filled correctly:

```
Row 1: 3 6 9 12 15
Row 2: 18 21 24 27 30
Row 3: 33 36 39 42 45
```

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📋 Final Answer (What to Cut Out & Paste)

Cut out these numbers from the dashed box and paste them into the empty spaces in this exact order:

First Row (left to right):
→ 6, 9, 12, 15

Second Row (left to right):
→ 18, 21, 27, 30
*(Note: 24 is already there)*

Third Row (left to right):
→ 33, 36, 39, 42
*(Note: 45 is already there)*

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🎯 Why This Works

This activity reinforces:
- Recognizing multiples of 3
- Number sequencing
- Spatial organization (filling grids in order)
- Fine motor skills (cutting and pasting)

It’s a great foundational math exercise for early learners!

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✔ Completed Worksheet Answer:

```
[ 3 ] [ 6 ] [ 9 ] [12 ] [15 ]
[18 ] [21 ] [24 ] [27 ] [30 ]
[33 ] [36 ] [39 ] [42 ] [45 ]
```

Just cut and paste the missing numbers into those empty boxes — and you’re done! 🌟