Math worksheet for adding 4-digit numbers, featuring a fun Pac-Man design.

The task involves solving the addition of 4-digit numbers. Below is the step-by-step solution for each problem:

---

Problem 1:

$$
1,789 + 2,567
$$
- Add the units place: \( 9 + 7 = 16 \) (write 6, carry 1)
- Add the tens place: \( 8 + 6 + 1 = 15 \) (write 5, carry 1)
- Add the hundreds place: \( 7 + 5 + 1 = 13 \) (write 3, carry 1)
- Add the thousands place: \( 1 + 2 + 1 = 4 \)

$$
\boxed{4,356}
$$

---

Problem 2:

$$
3,127 + 2,677
$$
- Add the units place: \( 7 + 7 = 14 \) (write 4, carry 1)
- Add the tens place: \( 2 + 7 + 1 = 10 \) (write 0, carry 1)
- Add the hundreds place: \( 1 + 6 + 1 = 8 \)
- Add the thousands place: \( 3 + 2 = 5 \)

$$
\boxed{5,804}
$$

---

Problem 3:

$$
5,123 + 3,335
$$
- Add the units place: \( 3 + 5 = 8 \)
- Add the tens place: \( 2 + 3 = 5 \)
- Add the hundreds place: \( 1 + 3 = 4 \)
- Add the thousands place: \( 5 + 3 = 8 \)

$$
\boxed{8,458}
$$

---

Problem 4:

$$
2,763 + 1,634
$$
- Add the units place: \( 3 + 4 = 7 \)
- Add the tens place: \( 6 + 3 = 9 \)
- Add the hundreds place: \( 7 + 6 = 13 \) (write 3, carry 1)
- Add the thousands place: \( 2 + 1 + 1 = 4 \)

$$
\boxed{4,397}
$$

---

Problem 5:

$$
4,861 + 3,456
$$
- Add the units place: \( 1 + 6 = 7 \)
- Add the tens place: \( 6 + 5 = 11 \) (write 1, carry 1)
- Add the hundreds place: \( 8 + 4 + 1 = 13 \) (write 3, carry 1)
- Add the thousands place: \( 4 + 3 + 1 = 8 \)

$$
\boxed{8,317}
$$

---

Problem 6:

$$
1,349 + 7,635
$$
- Add the units place: \( 9 + 5 = 14 \) (write 4, carry 1)
- Add the tens place: \( 4 + 3 + 1 = 8 \)
- Add the hundreds place: \( 3 + 6 = 9 \)
- Add the thousands place: \( 1 + 7 = 8 \)

$$
\boxed{8,984}
$$

---

Problem 7:

$$
3,778 + 3,876
$$
- Add the units place: \( 8 + 6 = 14 \) (write 4, carry 1)
- Add the tens place: \( 7 + 7 + 1 = 15 \) (write 5, carry 1)
- Add the hundreds place: \( 7 + 8 + 1 = 16 \) (write 6, carry 1)
- Add the thousands place: \( 3 + 3 + 1 = 7 \)

$$
\boxed{7,654}
$$

---

Problem 8:

$$
1,530 + 4,681
$$
- Add the units place: \( 0 + 1 = 1 \)
- Add the tens place: \( 3 + 8 = 11 \) (write 1, carry 1)
- Add the hundreds place: \( 5 + 6 + 1 = 12 \) (write 2, carry 1)
- Add the thousands place: \( 1 + 4 + 1 = 6 \)

$$
\boxed{6,211}
$$

---

Problem 9:

$$
5,430 + 2,125
$$
- Add the units place: \( 0 + 5 = 5 \)
- Add the tens place: \( 3 + 2 = 5 \)
- Add the hundreds place: \( 4 + 1 = 5 \)
- Add the thousands place: \( 5 + 2 = 7 \)

$$
\boxed{7,555}
$$

---

Problem 10:

$$
2,693 + 2,208
$$
- Add the units place: \( 3 + 8 = 11 \) (write 1, carry 1)
- Add the tens place: \( 9 + 0 + 1 = 10 \) (write 0, carry 1)
- Add the hundreds place: \( 6 + 2 + 1 = 9 \)
- Add the thousands place: \( 2 + 2 = 4 \)

$$
\boxed{4,901}
$$

---

Problem 11:

$$
2,983 + 3,836
$$
- Add the units place: \( 3 + 6 = 9 \)
- Add the tens place: \( 8 + 3 = 11 \) (write 1, carry 1)
- Add the hundreds place: \( 9 + 8 + 1 = 18 \) (write 8, carry 1)
- Add the thousands place: \( 2 + 3 + 1 = 6 \)

$$
\boxed{6,819}
$$

---

Problem 12:

$$
2,662 + 2,234
$$
- Add the units place: \( 2 + 4 = 6 \)
- Add the tens place: \( 6 + 3 = 9 \)
- Add the hundreds place: \( 6 + 2 = 8 \)
- Add the thousands place: \( 2 + 2 = 4 \)

$$
\boxed{4,896}
$$

---

Problem 13:

$$
3,415 + 2,893
$$
- Add the units place: \( 5 + 3 = 8 \)
- Add the tens place: \( 1 + 9 = 10 \) (write 0, carry 1)
- Add the hundreds place: \( 4 + 8 + 1 = 13 \) (write 3, carry 1)
- Add the thousands place: \( 3 + 2 + 1 = 6 \)

$$
\boxed{6,308}
$$

---

Problem 14:

$$
4,442 + 4,108
$$
- Add the units place: \( 2 + 8 = 10 \) (write 0, carry 1)
- Add the tens place: \( 4 + 0 + 1 = 5 \)
- Add the hundreds place: \( 4 + 1 = 5 \)
- Add the thousands place: \( 4 + 4 = 8 \)

$$
\boxed{8,550}
$$

---

Problem 15:

$$
3,550 + 4,633
$$
- Add the units place: \( 0 + 3 = 3 \)
- Add the tens place: \( 5 + 3 = 8 \)
- Add the hundreds place: \( 5 + 6 = 11 \) (write 1, carry 1)
- Add the thousands place: \( 3 + 4 + 1 = 8 \)

$$
\boxed{8,183}
$$

---

Problem 16:

$$
1,882 + 2,644
$$
- Add the units place: \( 2 + 4 = 6 \)
- Add the tens place: \( 8 + 4 = 12 \) (write 2, carry 1)
- Add the hundreds place: \( 8 + 6 + 1 = 15 \) (write 5, carry 1)
- Add the thousands place: \( 1 + 2 + 1 = 4 \)

$$
\boxed{4,526}
$$

---

Problem 17:

$$
4,957 + 4,665
$$
- Add the units place: \( 7 + 5 = 12 \) (write 2, carry 1)
- Add the tens place: \( 5 + 6 + 1 = 12 \) (write 2, carry 1)
- Add the hundreds place: \( 9 + 6 + 1 = 16 \) (write 6, carry 1)
- Add the thousands place: \( 4 + 4 + 1 = 9 \)

$$
\boxed{9,622}
$$

---

Problem 18:

$$
6,559 + 2,334
$$
- Add the units place: \( 9 + 4 = 13 \) (write 3, carry 1)
- Add the tens place: \( 5 + 3 + 1 = 9 \)
- Add the hundreds place: \( 5 + 3 = 8 \)
- Add the thousands place: \( 6 + 2 = 8 \)

$$
\boxed{8,893}
$$

---

Problem 19:

$$
3,272 + 1,931
$$
- Add the units place: \( 2 + 1 = 3 \)
- Add the tens place: \( 7 + 3 = 10 \) (write 0, carry 1)
- Add the hundreds place: \( 2 + 9 + 1 = 12 \) (write 2, carry 1)
- Add the thousands place: \( 3 + 1 + 1 = 5 \)

$$
\boxed{5,203}
$$

---

Problem 20:

$$
1,123 + 6,009
$$
- Add the units place: \( 3 + 9 = 12 \) (write 2, carry 1)
- Add the tens place: \( 2 + 0 + 1 = 3 \)
- Add the hundreds place: \( 1 + 0 = 1 \)
- Add the thousands place: \( 1 + 6 = 7 \)

$$
\boxed{7,132}
$$

---

Problem 21:

$$
1,225 + 2,750
$$
- Add the units place: \( 5 + 0 = 5 \)
- Add the tens place: \( 2 + 5 = 7 \)
- Add the hundreds place: \( 2 + 7 = 9 \)
- Add the thousands place: \( 1 + 2 = 3 \)

$$
\boxed{3,975}
$$

---

Problem 22:

$$
7,276 + 2,331
$$
- Add the units place: \( 6 + 1 = 7 \)
- Add the tens place: \( 7 + 3 = 10 \) (write 0, carry 1)
- Add the hundreds place: \( 2 + 3 + 1 = 6 \)
- Add the thousands place: \( 7 + 2 = 9 \)

$$
\boxed{9,607}
$$

---

Problem 23:

$$
3,754 + 2,887
$$
- Add the units place: \( 4 + 7 = 11 \) (write 1, carry 1)
- Add the tens place: \( 5 + 8 + 1 = 14 \) (write 4, carry 1)
- Add the hundreds place: \( 7 + 8 + 1 = 16 \) (write 6, carry 1)
- Add the thousands place: \( 3 + 2 + 1 = 6 \)

$$
\boxed{6,641}
$$

---

Final Answer:

$$
\boxed{
\begin{aligned}
&4,356, 5,804, 8,458, 4,397, 8,317, 8,984, 7,654, 6,211, 7,555, 4,901, 6,819, 4,896, \\
&6,308, 8,550, 8,183, 4,526, 9,622, 8,893, 5,203, 7,132, 3,975, 9,607, 6,641
\end{aligned}
}
$$