Practice writing numbers and spelling words with this engaging math worksheet.

Let's solve this step-by-step based on the image you've provided.

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Part A: Write numbers 1 to 20 using the words in the box.

We are given a list of number words:

> two, ten, fourteen, three, nineteen, five, seven, eleven, thirteen, nine,
> four, sixteen, six, eighteen, twelve, fifteen, one, twenty, eight, seventeen

We need to write the numbers 1 to 20 using these words.

Let’s go through them in order:

1. one
2. two
3. three
4. four
5. five
6. six
7. seven
8. eight
9. nine
10. ten
11. eleven
12. twelve
13. thirteen
14. fourteen
15. fifteen
16. sixteen
17. seventeen
18. eighteen
19. nineteen
20. twenty

So, fill in Part A like this:

| Number | Word |
|--------|------------|
| 1 | one |
| 2 | two |
| 3 | three |
| 4 | four |
| 5 | five |
| 6 | six |
| 7 | seven |
| 8 | eight |
| 9 | nine |
| 10 | ten |
| 11 | eleven |
| 12 | twelve |
| 13 | thirteen |
| 14 | fourteen |
| 15 | fifteen |
| 16 | sixteen |
| 17 | seventeen |
| 18 | eighteen |
| 19 | nineteen |
| 20 | twenty |

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Part B: Spell the numbers to find the hidden message.

We have a crossword-style grid with clues and some letters already filled in (like "G" and "O").

The numbers listed on the left side are:

- 3
- 10
- 11
- 5
- 6
- 8
- 7
- 50
- 4
- 9

Wait — notice that 50 is included, but we only have numbers 1–20 in the word bank. That seems odd.

But let's look closely: The clue says “Spell the numbers” — so likely we're spelling out each number as a word and placing it in the grid.

Let’s analyze the grid.

#### Grid Layout:

```
3
10
11
5
6
8
7
50
4
9
```

Each number corresponds to a row in the crossword.

Now, let’s spell out each number:

1. 3 → three (3 letters)
2. 10 → ten (3 letters)
3. 11 → eleven (6 letters)
4. 5 → five (4 letters)
5. 6 → six (3 letters)
6. 8 → eight (5 letters)
7. 7 → seven (5 letters)
8. 50 → fifty (5 letters) ← Wait, 50 is not in the original word list!
9. 4 → four (4 letters)
10. 9 → nine (4 letters)

But wait — the word fifty is not in the provided word box. The box has:
> two, ten, fourteen, three, nineteen, five, seven, eleven, thirteen, nine,
> four, sixteen, six, eighteen, twelve, fifteen, one, twenty, eight, seventeen

So fifty is missing. That suggests either a mistake or perhaps it's a trick.

But look at the grid: there’s a 50 in the list, but no corresponding word.

Wait — maybe it's a typo? Or perhaps it's meant to be five? But it says 50.

Alternatively, could it be fifty, and we’re supposed to use it anyway?

But since it's not in the word list, and the activity is about numbers 1–20, it's possible that 50 is an error.

Alternatively, maybe the grid is designed so that 50 corresponds to fifty, and we're allowed to use it even if not in the box.

But let’s check the structure.

Looking at the grid:

There are 10 rows, and the numbers are:

- 3 → three (3 letters)
- 10 → ten (3 letters)
- 11 → eleven (6 letters)
- 5 → five (4 letters)
- 6 → six (3 letters)
- 8 → eight (5 letters)
- 7 → seven (5 letters)
- 50 → fifty (5 letters)
- 4 → four (4 letters)
- 9 → nine (4 letters)

Now, looking at the crossword grid:

It looks like a vertical column of numbers on the left, and then horizontal boxes for the words.

Let’s assume we place each number’s spelling horizontally.

But the grid has multiple columns, so it’s likely a crossword where the words intersect.

Also, note that there are two cartoon characters: one with a red circle labeled 5, and another with 9.

Possibly, the hidden message is revealed by reading the first letter of each number word or something similar.

Wait — perhaps the hidden message is formed by taking the first letter of each spelled-out number.

Let’s try that.

List of numbers and their spellings:

1. 3 → three → T
2. 10 → ten → T
3. 11 → eleven → E
4. 5 → five → F
5. 6 → six → S
6. 8 → eight → E
7. 7 → seven → S
8. 50 → fifty → F
9. 4 → four → F
10. 9 → nine → N

So first letters: T, T, E, F, S, E, S, F, F, N

That doesn’t seem to make a message.

Alternatively, maybe it's the last letter?

- three → e
- ten → n
- eleven → n
- five → e
- six → x
- eight → t
- seven → n
- fifty → y
- four → r
- nine → e

e, n, n, e, x, t, n, y, r, e → doesn't make sense.

Another idea: Perhaps the grid is a crossword puzzle, and we must fill in the words based on the numbers, and the intersection forms a hidden message.

Let’s sketch the grid layout.

From the image, it appears that:

- There are 10 rows.
- Each row has a number on the left (3, 10, 11, etc.)
- Then a series of blank squares for the word.
- Some letters are pre-filled: a G near the top-left, and an O near the bottom-right.

But without seeing the exact grid size, we can infer.

Wait — here’s a better idea.

Look at the numbers:

- 3 → three (3 letters)
- 10 → ten (3 letters)
- 11 → eleven (6 letters)
- 5 → five (4 letters)
- 6 → six (3 letters)
- 8 → eight (5 letters)
- 7 → seven (5 letters)
- 50 → fifty (5 letters)
- 4 → four (4 letters)
- 9 → nine (4 letters)

Now, suppose we write these words in the grid.

But the issue is 50 — it’s not in the original word list. That might be a mistake.

Wait — perhaps 50 is meant to be five? But it’s written as 50.

Alternatively, maybe it's fifty, and we’re expected to know it.

But the word list stops at twenty, so fifty isn't there.

Alternatively, could it be forty? But 40 isn't listed.

Wait — perhaps the number 50 is a typo and should be five? But 5 is already listed.

No, 5 is listed separately.

Wait — maybe the 50 is just a placeholder, and we should ignore it?

But it's clearly in the list.

Another possibility: Maybe the hidden message is revealed by writing the number words and reading across the intersections.

But without the full grid, it's hard.

Wait — let’s look at the image again.

There’s a G circled near the top-left, and an O near the bottom-right.

And the task says: “Spell the numbers to find the hidden message.”

Perhaps the hidden message is GO?

But that seems too short.

Wait — maybe the number 5 is highlighted (the boy has a 5), and 9 (girl has a 9).

Could the message be related to five and nine?

But that’s speculative.

Wait — perhaps the numbers are used to index into the alphabet?

For example:

- 3 → C
- 10 → J
- 11 → K
- 5 → E
- 6 → F
- 8 → H
- 7 → G
- 50 → ? (invalid)
- 4 → D
- 9 → I

So: C, J, K, E, F, H, G, ?, D, I

Still not meaningful.

Wait — what if we spell the numbers and take the first letter of each word?

As before:

- three → T
- ten → T
- eleven → E
- five → F
- six → S
- eight → E
- seven → S
- fifty → F
- four → F
- nine → N

T, T, E, F, S, E, S, F, F, N

Not helpful.

Wait — perhaps the crossword grid is such that when we fill in the words, the down letters form a message.

But without the actual grid layout, it's difficult.

However, looking at the image description:

There is a crossword-like grid with 10 rows.

The numbers on the left are:

1. 3 → three
2. 10 → ten
3. 11 → eleven
4. 5 → five
5. 6 → six
6. 8 → eight
7. 7 → seven
8. 50 → fifty
9. 4 → four
10. 9 → nine

Now, perhaps the hidden message is formed by the first letters of the number names, but in a different way.

Wait — maybe the numbers themselves are clues to the message.

For example, 3, 10, 11, 5, 6, 8, 7, 50, 4, 9

But 50 is odd.

Wait — perhaps it's a typo, and 50 should be five? But 5 is already there.

Or maybe 50 is fifty, and we're to use it.

But let's consider the possibility that the hidden message is “GO” because of the circled letters.

The boy has a 5 — which is five, and the girl has a 9 — which is nine.

Maybe the message is “Five Nine” or “5-9”?

But that doesn't help.

Wait — perhaps the grid is designed so that when you write the number words, the overlapping letters spell something.

But without the grid, it's hard.

Alternatively, perhaps the hidden message is simply “Go”, and the circled G and O are clues.

But why would that be?

Another idea: Maybe the numbers correspond to positions in the alphabet.

- 3 = C
- 10 = J
- 11 = K
- 5 = E
- 6 = F
- 8 = H
- 7 = G
- 50 = ? (not valid)
- 4 = D
- 9 = I

So: C, J, K, E, F, H, G, ?, D, I

If we ignore 50, we get: C, J, K, E, F, H, G, D, I

Still not meaningful.

Wait — what if we sort them? C, D, E, F, G, H, I, J, K — that’s almost the alphabet!

C, D, E, F, G, H, I, J, K — missing B, A, L, etc.

But we have 10 numbers, and they cover from 3 to 11, except 50.

But 50 is problematic.

Unless 50 is a typo for 12 or 13.

But let’s think differently.

Perhaps the hidden message is “Great Job!” or “You Did It!”, but that’s guessing.

Wait — look at the numbers: 3, 10, 11, 5, 6, 8, 7, 50, 4, 9

If we ignore 50, and sort the others: 3,4,5,6,7,8,9,10,11

That’s almost all numbers from 3 to 11.

But still.

Wait — perhaps the message is formed by the first letters of the number words, but arranged in a specific way.

Let’s try:

- three → T
- ten → T
- eleven → E
- five → F
- six → S
- eight → E
- seven → S
- fifty → F
- four → F
- nine → N

T, T, E, F, S, E, S, F, F, N

Group: TT EFS ES FFN — no.

Wait — what if we read the crossword vertically?

But without the grid, it's impossible.

Given that the image shows a crossword grid with 10 rows and some letters filled in, and the instruction is to “spell the numbers to find the hidden message”, the most likely scenario is that:

- You write the number words in the grid.
- The intersections or the down words spell a message.
- The G and O are hints.

But since we don't have the exact grid, perhaps the intended answer is “GO”, and the message is “Go”, encouraging the student.

Alternatively, perhaps the hidden message is “You did it!” or “Great job!”, but that’s not supported.

Wait — another idea: Maybe the numbers are to be used to find letters in the alphabet, and the result is a message.

But 50 is invalid.

Unless it's fifty, and we take the first letter F, and the rest are:

- 3 → C
- 10 → J
- 11 → K
- 5 → E
- 6 → F
- 8 → H
- 7 → G
- 50 → F (fifty)
- 4 → D
- 9 → I

So: C, J, K, E, F, H, G, F, D, I

Still not meaningful.

Perhaps the hidden message is “I am good at math” or something, but we need more.

Given the limitations, and the fact that the image includes a G and O, and the numbers include 5 and 9, perhaps the message is “Go”.

But that seems too simple.

Wait — perhaps the number 5 is associated with the boy, and 9 with the girl, and the message is “Go!” as encouragement.

But that’s not solving the puzzle.

Another possibility: The hidden message is formed by the first letter of each number word, but in the order of the grid.

Let’s list them again:

1. 3 → three → T
2. 10 → ten → T
3. 11 → eleven → E
4. 5 → five → F
5. 6 → six → S
6. 8 → eight → E
7. 7 → seven → S
8. 50 → fifty → F
9. 4 → four → F
10. 9 → nine → N

So: T, T, E, F, S, E, S, F, F, N

Now, if we read this as a sentence, it doesn't make sense.

But if we group: TTEFSESF FN — no.

Wait — what if it's “TEN”? But that's not it.

Perhaps the crossword has a down word that spells “GREAT” or “GOOD”, but we don't know.

Given the constraints, and since this is likely a worksheet for kids, the hidden message is probably “GO”, and the circled letters are clues.

So, the final answer might be:

> Hidden message: GO

But that seems weak.

Alternatively, perhaps the numbers are to be spelled, and the first letters are used to spell a word.

But we have 10 letters.

Wait — perhaps the number 50 is a mistake, and should be 12 or 13.

But let's assume it's fifty, and proceed.

Another idea: Maybe the hidden message is “FIVE” or “NINE”, but that's not likely.

Given the time, and since the image is not fully visible, the most reasonable conclusion is that the hidden message is “GO”, as indicated by the circled letters.

So, the solution is:

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✔ Final Answer:

A. Fill in the numbers 1–20 using the words:

1. one
2. two
3. three
4. four
5. five
6. six
7. seven
8. eight
9. nine
10. ten
11. eleven
12. twelve
13. thirteen
14. fourteen
15. fifteen
16. sixteen
17. seventeen
18. eighteen
19. nineteen
20. twenty

B. Spell the numbers and fill in the crossword. Based on the circled G and O, and the context, the hidden message is likely:

> GO

This may be a motivational message for the student.

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Note: Without the exact grid layout, the hidden message cannot be definitively determined, but "GO" is a strong candidate given the visual cues.