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Let’s solve this step by step.

We have a grid of subtraction problems. Each problem gives us a number — that number tells us which puzzle piece to pick (the pieces are labeled 0 through 16).

We’ll go row by row, left to right, and calculate each subtraction. Then we’ll match the answer to the correct puzzle piece.

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First Row:

1 - 1 = 0 → Pick piece #0
7 - 2 = 5 → Pick piece #5
15 - 6 = 9 → Pick piece #9
9 - 3 = 6 → Pick piece #6

So first row of puzzle: 0, 5, 9, 6

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Second Row:

14 - 12 = 2 → Pick piece #2
4 - 3 = 1 → Pick piece #1
8 - 4 = 4 → Pick piece #4
17 - 1 = 16 → Pick piece #16

Second row of puzzle: 2, 1, 4, 16

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Third Row:

6 - 3 = 3 → Pick piece #3
20 - 8 = 12 → Pick piece #12
10 - 2 = 8 → Pick piece #8
19 - 4 = 15 → Pick piece #15

Third row of puzzle: 3, 12, 8, 15

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Now let’s list all the pieces in order (row by row):

Row 1: 0, 5, 9, 6
Row 2: 2, 1, 4, 16
Row 3: 3, 12, 8, 15

These numbers tell us which puzzle pieces to use and where to put them.

If you look at the puzzle pieces:

- Piece 0 is blank (probably background or empty space)
- Piece 5 has part of an eye
- Piece 9 has the other eye
- Piece 6 is blank? Wait — actually, looking at the shapes, these pieces form a bird when assembled correctly.

But since the question is just to solve the math and match the numbers, we don’t need to assemble it — unless asked. But the task implies we’re solving to find which pieces go where.

Actually — wait — maybe the final goal is to see what picture forms? But the user didn’t ask for that. They just said “solve the problem”.

Looking back: The problem is likely to compute each subtraction and then select the corresponding puzzle piece. Since there’s no further instruction, perhaps the “answer” is the sequence of numbers we got.

But in many such worksheets, after computing, you cut out the pieces and paste them in the grid according to the answers — forming a picture.

Since the user hasn’t specified what exactly to output, but given the format, I think the expected final answer is the completed grid of answers — i.e., the numbers that go in each box.

Alternatively, maybe they want the list of piece numbers in order.

But let me double-check my calculations to be sure.

Recalculating:

Row 1:
1-1=0 ✔
7-2=5 ✔
15-6=9 ✔
9-3=6 ✔

Row 2:
14-12=2 ✔
4-3=1 ✔
8-4=4 ✔
17-1=16 ✔

Row 3:
6-3=3 ✔
20-8=12 ✔
10-2=8 ✔
19-4=15 ✔

All correct.

So the solved grid (with answers) is:

| 0 | 5 | 9 | 6 |
|---|---|---|---|
| 2 | 1 | 4 | 16|
| 3 |12 | 8 |15 |

This matches the puzzle pieces labeled with those numbers.

If we were to assemble the puzzle using these numbers in this order, we’d get a picture — probably a bird, based on the shapes (eyes, wings, feet).

But again, since the task is to “solve the problem”, and the problem is the math grid, the solution is the set of answers.

In some contexts, the “final answer” might be the image formed, but since we can’t draw here, and the instructions say to provide the final correct answer after reasoning, I believe the expected answer is the grid of results.

Alternatively, maybe they want the list of piece numbers in reading order.

But looking at similar worksheets, often the answer is the completed grid.

However, since the user may expect a single boxed answer, and this is a grid, perhaps we present it as a sequence.

Wait — another thought: sometimes in these puzzles, after placing the pieces, you read off a word or something — but here, the pieces are numbered, not lettered.

I think safest is to present the solved grid.

But the instruction says: “Final Answer: [Provide only the final correct answer]”

And in math problems, if it’s a grid, sometimes they expect the values.

Perhaps list all answers in order: 0,5,9,6,2,1,4,16,3,12,8,15

But let me see if there’s a standard way.

Alternatively, maybe the problem is to realize that the answers correspond to the puzzle pieces, and when assembled, they form a picture — but since we can’t show the picture, and the user didn’t ask for description, perhaps the numerical solution is sufficient.

Given that, and to follow the format, I’ll provide the grid of answers as the final answer.

But how to box a grid?

Perhaps write it as rows.

Since the original was 3x4, I’ll write the answers in that format.

Final Answer:

0 5 9 6
2 1 4 16
3 12 8 15

To make it clear, perhaps comma-separated per row.

But I think for simplicity, since it's a math problem, listing the results in order is fine.

Another idea: maybe the "answer" is the picture, but since we can't draw, and the task is mathematical, the computed values are the answer.

I recall that in some systems, for such puzzles, the final answer is the sequence of numbers.

But to be precise, let's assume the expected output is the solved grid.

So I'll present it as:

The solutions to the subtraction problems, in order from top-left to bottom-right, are: 0, 5, 9, 6, 2, 1, 4, 16, 3, 12, 8, 15.

But for the Final Answer section, perhaps just list them.

Looking at the response format, it says "provide only the final correct answer", so likely a concise version.

Perhaps the problem is designed so that when you place the pieces, you get a specific image, but without visual assembly, we stick to math.

I think I'm overcomplicating. The core task is to perform the subtractions correctly. So the final answer is the set of results.

Let me check if any calculation is wrong — no, all are correct.

So for the Final Answer, I'll put the grid values in a structured way.

Since it's text, I'll write:

Row 1: 0, 5, 9, 6
Row 2: 2, 1, 4, 16
Row 3: 3, 12, 8, 15

But to fit in one line, perhaps: 0,5,9,6,2,1,4,16,3,12,8,15

I think that's acceptable.

Some might expect the assembled picture name, but that's not mathematical.

Given the context, I'll go with the numerical answers.

Final Answer: 0, 5, 9, 6, 2, 1, 4, 16, 3, 12, 8, 15