The task involves solving addition and subtraction problems and writing the answers in the snowflake shapes. Let's solve each problem step by step:
Problem 1: \( 12 + 4 \)
- Add 12 and 4:
\[
12 + 4 = 16
\]
- Answer:
16
Problem 2: \( 15 - 9 \)
- Subtract 9 from 15:
\[
15 - 9 = 6
\]
- Answer:
6
Problem 3: \( 8 + 6 \)
- Add 8 and 6:
\[
8 + 6 = 14
\]
- Answer:
14
Problem 4: \( 4 - 4 \)
- Subtract 4 from 4:
\[
4 - 4 = 0
\]
- Answer:
0
Problem 5: \( 19 - 9 \)
- Subtract 9 from 19:
\[
19 - 9 = 10
\]
- Answer:
10
Problem 6: \( 1 + 19 \)
- Add 1 and 19:
\[
1 + 19 = 20
\]
- Answer:
20
Problem 7: \( 15 - 7 \)
- Subtract 7 from 15:
\[
15 - 7 = 8
\]
- Answer:
8
Problem 8: \( 16 + 3 \)
- Add 16 and 3:
\[
16 + 3 = 19
\]
- Answer:
19
Problem 9: \( 2 + 16 \)
- Add 2 and 16:
\[
2 + 16 = 18
\]
- Answer:
18
Problem 10: \( 10 - 7 \)
- Subtract 7 from 10:
\[
10 - 7 = 3
\]
- Answer:
3
Problem 11: \( 11 + 3 \)
- Add 11 and 3:
\[
11 + 3 = 14
\]
- Answer:
14
Problem 12: \( 18 - 9 \)
- Subtract 9 from 18:
\[
18 - 9 = 9
\]
- Answer:
9
Final Answers:
\[
\begin{array}{|c|c|}
\hline
12 + 4 = & 15 - 9 = \\
\textbf{16} & \textbf{6} \\
\hline
8 + 6 = & 4 - 4 = \\
\textbf{14} & \textbf{0} \\
\hline
19 - 9 = & 1 + 19 = \\
\textbf{10} & \textbf{20} \\
\hline
15 - 7 = & 16 + 3 = \\
\textbf{8} & \textbf{19} \\
\hline
2 + 16 = & 10 - 7 = \\
\textbf{18} & \textbf{3} \\
\hline
11 + 3 = & 18 - 9 = \\
\textbf{14} & \textbf{9} \\
\hline
\end{array}
\]
Thus, the final answers are:
\[
\boxed{16, 6, 14, 0, 10, 20, 8, 19, 18, 3, 14, 9}
\]
Parent Tip: Review the logic above to help your child master the concept of 1st grade math worksheet addition and subtraction.
