Math worksheet for adding three numbers with rocket-themed problems.

The task involves solving a series of addition problems where three numbers are added together. Let's solve each problem step by step.

Problem 1: \(2 + 3 + 4\)

- First, add \(2 + 3 = 5\).
- Then, add \(5 + 4 = 9\).
- Answer: \(9\)

Problem 2: \(2 + 4 + 2\)

- First, add \(2 + 4 = 6\).
- Then, add \(6 + 2 = 8\).
- Answer: \(8\)

Problem 3: \(2 + 6 + 1\)

- First, add \(2 + 6 = 8\).
- Then, add \(8 + 1 = 9\).
- Answer: \(9\)

Problem 4: \(2 + 3 + 3\)

- First, add \(2 + 3 = 5\).
- Then, add \(5 + 3 = 8\).
- Answer: \(8\)

Problem 5: \(2 + 2 + 5\)

- First, add \(2 + 2 = 4\).
- Then, add \(4 + 5 = 9\).
- Answer: \(9\)

Problem 6: \(1 + 3 + 5\)

- First, add \(1 + 3 = 4\).
- Then, add \(4 + 5 = 9\).
- Answer: \(9\)

Problem 7: \(7 + 3 + 5\)

- First, add \(7 + 3 = 10\).
- Then, add \(10 + 5 = 15\).
- Answer: \(15\)

Problem 8: \(6 + 4 + 5\)

- First, add \(6 + 4 = 10\).
- Then, add \(10 + 5 = 15\).
- Answer: \(15\)

Problem 9: \(2 + 3 + 8\)

- First, add \(2 + 3 = 5\).
- Then, add \(5 + 8 = 13\).
- Answer: \(13\)

Problem 10: \(2 + 3 + 7\)

- First, add \(2 + 3 = 5\).
- Then, add \(5 + 7 = 12\).
- Answer: \(12\)

Final Answers:

\[
\begin{aligned}
&2 + 3 + 4 = 9 \\
&2 + 4 + 2 = 8 \\
&2 + 6 + 1 = 9 \\
&2 + 3 + 3 = 8 \\
&2 + 2 + 5 = 9 \\
&1 + 3 + 5 = 9 \\
&7 + 3 + 5 = 15 \\
&6 + 4 + 5 = 15 \\
&2 + 3 + 8 = 13 \\
&2 + 3 + 7 = 12 \\
\end{aligned}
\]

Thus, the final answers are:
\[
\boxed{9, 8, 9, 8, 9, 9, 15, 15, 13, 12}
\]