Tally the Number Sheet 1: Practice converting numbers to tally marks.

Let's solve this step by step.

Understanding Tally Marks

Tally marks are a way to count and represent numbers using vertical lines. The system works like this:
- Each individual line represents 1.
- Every 5th line is drawn diagonally across the previous four lines (forming a "group of 5").
- So, a group of 5 looks like: `||||\` (four vertical lines with one diagonal line crossing them).

We'll use this pattern to convert each number into tally marks.

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Given Example:

1) Number: 6 → Tally: `||||\ |`
- This means: One group of 5 (`||||\`) + one extra line (`|`) = 6

Now let’s go through each number:

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2) 8

- 8 = 5 + 3
- One group of 5: `||||\`
- Three more lines: `|||`
- So, tally: `||||\ |||`

✔ Answer: `||||\ |||`

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3) 10

- 10 = 5 + 5
- Two groups of 5: `||||\ ||||\`
- So, tally: `||||\ ||||\`

✔ Answer: `||||\ ||||\`

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4) 3

- 3 = 3 single lines
- No group of 5 yet
- So, tally: `|||`

✔ Answer: `|||`

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5) 11

- 11 = 10 + 1 = 5 + 5 + 1
- Two groups of 5: `||||\ ||||\`
- Plus one more line: `|`
- So, tally: `||||\ ||||\ |`

✔ Answer: `||||\ ||||\ |`

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6) 14

- 14 = 10 + 4 = 5 + 5 + 4
- Two groups of 5: `||||\ ||||\`
- Four more lines: `||||`
- So, tally: `||||\ ||||\ ||||`

✔ Answer: `||||\ ||||\ ||||`

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7) 8

- Same as #2: 5 + 3
- Tally: `||||\ |||`

✔ Answer: `||||\ |||`

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8) 17

- 17 = 15 + 2 = 5×3 + 2
- Three groups of 5: `||||\ ||||\ ||||\`
- Two extra lines: `||`
- So, tally: `||||\ ||||\ ||||\ ||`

✔ Answer: `||||\ ||||\ ||||\ ||`

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9) 12

- 12 = 10 + 2 = 5 + 5 + 2
- Two groups of 5: `||||\ ||||\`
- Two extra lines: `||`
- So, tally: `||||\ ||||\ ||`

✔ Answer: `||||\ ||||\ ||`

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10) 20

- 20 = 5 × 4
- Four groups of 5: `||||\ ||||\ ||||\ ||||\`

✔ Answer: `||||\ ||||\ ||||\ ||||\`

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11) 16

- 16 = 15 + 1 = 5×3 + 1
- Three groups of 5: `||||\ ||||\ ||||\`
- One extra line: `|`
- So, tally: `||||\ ||||\ ||||\ |`

✔ Answer: `||||\ ||||\ ||||\ |`

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12) 23

- 23 = 20 + 3 = 5×4 + 3
- Four groups of 5: `||||\ ||||\ ||||\ ||||\`
- Three extra lines: `|||`
- So, tally: `||||\ ||||\ ||||\ ||||\ |||`

✔ Answer: `||||\ ||||\ ||||\ ||||\ |||`

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✔ Final Answers:

| NUMBER | TALLY |
|--------|-------|
| 1) 6 | `||||\ |` |
| 2) 8 | `||||\ |||` |
| 3) 10 | `||||\ ||||\` |
| 4) 3 | `|||` |
| 5) 11 | `||||\ ||||\ |` |
| 6) 14 | `||||\ ||||\ ||||` |
| 7) 8 | `||||\ |||` |
| 8) 17 | `||||\ ||||\ ||||\ ||` |
| 9) 12 | `||||\ ||||\ ||` |
| 10) 20 | `||||\ ||||\ ||||\ ||||\` |
| 11) 16 | `||||\ ||||\ ||||\ |` |
| 12) 23 | `||||\ ||||\ ||||\ ||||\ |||` |

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🔍 Explanation Summary:

- Use groups of 5: `||||\` for every 5.
- Add extra lines after the last group.
- Always draw the diagonal line across four vertical lines to make a group of 5.

This method helps in quickly counting large numbers visually and is often used in data collection or early math education.

Let me know if you'd like a printable version or a visual diagram!