Subtraction worksheet with riddle decoding activity for 3-digit numbers.

Let's solve this step by step.

We are given a subtraction worksheet where we need to:

1. Solve each subtraction problem.
2. Map the answer to a letter (each problem is labeled with a letter).
3. Use the answers to decode the riddle:
*"What goes up and down the stairs without moving?"*

---

Step 1: Solve Each Subtraction Problem

We'll go through each one:

#### E) 614 - 595
```
614
-595
----
19
```
→ E = 19

#### C) 468 - 201
```
468
-201
----
267
```
→ C = 267

#### P) 883 - 124
```
883
-124
----
759
```
→ P = 759

#### E) 693 - 674
```
693
-674
----
19
```
→ E = 19 (same as above)

#### A) 215 - 149
```
215
-149
----
66
```
→ A = 66

#### T) 758 - 137
```
758
-137
----
621
```
→ T = 621

#### A) 487 - 421
```
487
-421
----
66
```
→ A = 66 (same as above)

#### R) 797 - 206
```
797
-206
----
591
```
→ R = 591

#### C) 578 - 311
```
578
-311
----
267
```
→ C = 267 (same as first C)

#### P) 971 - 212
```
971
-212
----
759
```
→ P = 759 (same as earlier P)

#### R) 861 - 270
```
861
-270
----
591
```
→ R = 591 (same as earlier R)

#### T) 965 - 344
```
965
-344
----
621
```
→ T = 621 (same as earlier T)

#### E) 309 - 290
```
309
-290
----
19
```
→ E = 19 (again)

#### C) 899 - 632
```
899
-632
----
267
```
→ C = 267 (again)

---

Step 2: Collect All Answers and Map Letters

Now let’s list all the results and their corresponding letters:

| Letter | Answer |
|--------|--------|
| E | 19 |
| C | 267 |
| P | 759 |
| E | 19 |
| A | 66 |
| T | 621 |
| A | 66 |
| R | 591 |
| C | 267 |
| P | 759 |
| R | 591 |
| T | 621 |
| E | 19 |
| C | 267 |

So the full sequence of letters is:
E, C, P, E, A, T, A, R, C, P, R, T, E, C

And the corresponding numbers are:
19, 267, 759, 19, 66, 621, 66, 591, 267, 759, 591, 621, 19, 267

Now look at the bottom of the page:

> What goes up and down the stairs without moving?
> 267 66 591 759 19 621

Wait — that’s not matching our sequence. But perhaps it's giving us the code for the answer, and we need to map the numbers back to letters using the same logic.

But wait — maybe we’re supposed to decode the riddle using the number sequence at the bottom.

Let’s look again.

At the bottom, it says:

> What goes up and down the stairs without moving?
> 267 66 591 759 19 621

This seems to be the answer code — we need to map these numbers to letters based on the ones we solved.

From earlier, we know:

- 267 → C (from multiple problems)
- 66 → A
- 591 → R
- 759 → P
- 19 → E
- 621 → T

So now, decode the numbers:

267 → C
66 → A
591 → R
759 → P
19 → E
621 → T

So the word is: C A R P E T

→ CARPET

---

Final Answer:

The answer to the riddle is: CARPET

Because a carpet goes up and down the stairs without moving — it stays in place while people walk on it.

---

✔ Solution Summary:

- Solved all subtraction problems.
- Mapped numbers to letters.
- Used the clue numbers at the bottom: 267, 66, 591, 759, 19, 621
- Decoded them as: C, A, R, P, E, T
- Answer: CARPET

---

Answer: CARPET ✔