Math addition crossword puzzle worksheet for students to solve and check their work.

Sure! Let’s solve this Addition Crossword Puzzle step by step. This puzzle is designed like a crossword, but instead of words, you fill in the sums of the addition problems. Each row and column has an addition problem, and the answer goes in the box with the “=” sign.

We’ll solve each of the 4 puzzles one by one.

---

## 🔢 PUZZLE 1

```
Row 1: 7 + 7 + 5 = ?
Row 2: 9 + 17 + 18 = ?
Row 3: ? + ? + ? = ? ← This is the sum of the columns
Row 4: 19 + 5 + 4 = ?
Col 1: 7 + 9 + ? + 19 = ?
Col 2: 7 + 17 + ? + 5 = ?
Col 3: 5 + 18 + ? + 4 = ?
```

Let’s compute:

✔ Row 1: 7 + 7 + 5 = 19

✔ Row 2: 9 + 17 + 18 = 44

✔ Row 4: 19 + 5 + 4 = 28

Now, let’s find the missing numbers in Row 3 — these are the column sums:

✔ Col 1: 7 + 9 + ? + 19 = ? → Wait, actually, Row 3 is the sum of each column, so:

- Col 1: 7 (from row1) + 9 (row2) + 19 (row4) = 35 → So the missing cell in Row3, Col1 = 35
- Col 2: 7 + 17 + 5 = 29 → Row3, Col2 = 29
- Col 3: 5 + 18 + 4 = 27 → Row3, Col3 = 27

Now, Row 3 total: 35 + 29 + 27 = 91

So Row 3: 35 + 29 + 27 = 91

✔ Final answers for Puzzle 1:

- Row 1: 19
- Row 2: 44
- Row 3: 35, 29, 27, 91
- Row 4: 28
- Col 1: 35 (already filled)
- Col 2: 29 (already filled)
- Col 3: 27 (already filled)

> ✔ All boxes filled!

---

## 🔢 PUZZLE 2

```
Row 1: 2 + 15 + 15 = ?
Row 2: 13 + 14 + 9 = ?
Row 3: ? + ? + ? = ? ← column sums
Row 4: 15 + 4 + 13 = ?
Col 1: 2 + 13 + ? + 15 = ?
Col 2: 15 + 14 + ? + 4 = ?
Col 3: 15 + 9 + ? + 13 = ?
```

Compute rows:

✔ Row 1: 2 + 15 + 15 = 32

✔ Row 2: 13 + 14 + 9 = 36

✔ Row 4: 15 + 4 + 13 = 32

Now, Row 3 = column sums:

✔ Col 1: 2 + 13 + 15 = 30

✔ Col 2: 15 + 14 + 4 = 33

✔ Col 3: 15 + 9 + 13 = 37

Row 3 total: 30 + 33 + 37 = 100

✔ Final answers for Puzzle 2:

- Row 1: 32
- Row 2: 36
- Row 3: 30, 33, 37, 100
- Row 4: 32

---

## 🔢 PUZZLE 3

```
Row 1: 19 + 8 + 16 = ?
Row 2: 1 + 20 + 14 = ?
Row 3: ? + ? + ? = ? ← column sums
Row 4: 20 + 3 + 16 = ?
Col 1: 19 + 1 + ? + 20 = ?
Col 2: 8 + 20 + ? + 3 = ?
Col 3: 16 + 14 + ? + 16 = ?
```

Compute rows:

✔ Row 1: 19 + 8 + 16 = 43

✔ Row 2: 1 + 20 + 14 = 35

✔ Row 4: 20 + 3 + 16 = 39

Now, Row 3 = column sums:

✔ Col 1: 19 + 1 + 20 = 40

✔ Col 2: 8 + 20 + 3 = 31

✔ Col 3: 16 + 14 + 16 = 46

Row 3 total: 40 + 31 + 46 = 117

✔ Final answers for Puzzle 3:

- Row 1: 43
- Row 2: 35
- Row 3: 40, 31, 46, 117
- Row 4: 39

---

## 🔢 PUZZLE 4

```
Row 1: 10 + 11 + 10 = ?
Row 2: 8 + 17 + 5 = ?
Row 3: ? + ? + ? = ? ← column sums
Row 4: 20 + 15 + 16 = ?
Col 1: 10 + 8 + ? + 20 = ?
Col 2: 11 + 17 + ? + 15 = ?
Col 3: 10 + 5 + ? + 16 = ?
```

Compute rows:

✔ Row 1: 10 + 11 + 10 = 31

✔ Row 2: 8 + 17 + 5 = 30

✔ Row 4: 20 + 15 + 16 = 51

Now, Row 3 = column sums:

✔ Col 1: 10 + 8 + 20 = 38

✔ Col 2: 11 + 17 + 15 = 43

✔ Col 3: 10 + 5 + 16 = 31

Row 3 total: 38 + 43 + 31 = 112

✔ Final answers for Puzzle 4:

- Row 1: 31
- Row 2: 30
- Row 3: 38, 43, 31, 112
- Row 4: 51

---

## ✔ FINAL ANSWER SUMMARY:

Puzzle 1:

- Row 1: 19
- Row 2: 44
- Row 3: 35, 29, 27, 91
- Row 4: 28

Puzzle 2:

- Row 1: 32
- Row 2: 36
- Row 3: 30, 33, 37, 100
- Row 4: 32

Puzzle 3:

- Row 1: 43
- Row 2: 35
- Row 3: 40, 31, 46, 117
- Row 4: 39

Puzzle 4:

- Row 1: 31
- Row 2: 30
- Row 3: 38, 43, 31, 112
- Row 4: 51

---

📌 Tip: Always check your work! Add the row totals and column totals to make sure they match — that’s how crosswords work here.

You’re now a Math Wizard! 🧙‍♂️✨

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