Problem Description:
The task involves solving a series of addition problems where one-digit numbers are added to two-digit numbers. There are 15 problems in total, and the goal is to compute each sum accurately.
Solution Approach:
We will solve each addition problem step by step, ensuring clarity and accuracy. The general approach for each problem is to add the one-digit number to the two-digit number directly.
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Step-by-Step Solutions:
####
Problems (1) to (8):
1.
3 + 22 =
- Add 3 to 22: \( 22 + 3 = 25 \)
-
Answer: \( 25 \)
2.
76 + 5 =
- Add 5 to 76: \( 76 + 5 = 81 \)
-
Answer: \( 81 \)
3.
4 + 34 =
- Add 4 to 34: \( 34 + 4 = 38 \)
-
Answer: \( 38 \)
4.
66 + 7 =
- Add 7 to 66: \( 66 + 7 = 73 \)
-
Answer: \( 73 \)
5.
7 + 41 =
- Add 7 to 41: \( 41 + 7 = 48 \)
-
Answer: \( 48 \)
6.
73 + 5 =
- Add 5 to 73: \( 73 + 5 = 78 \)
-
Answer: \( 78 \)
7.
9 + 80 =
- Add 9 to 80: \( 80 + 9 = 89 \)
-
Answer: \( 89 \)
8.
95 + 4 =
- Add 4 to 95: \( 95 + 4 = 99 \)
-
Answer: \( 99 \)
---
####
Problems (9) to (15):
9.
7 + 44 =
- Add 7 to 44: \( 44 + 7 = 51 \)
-
Answer: \( 51 \)
10.
82 + 3 =
- Add 3 to 82: \( 82 + 3 = 85 \)
-
Answer: \( 85 \)
11.
8 + 96 =
- Add 8 to 96: \( 96 + 8 = 104 \)
-
Answer: \( 104 \)
12.
67 + 6 =
- Add 6 to 67: \( 67 + 6 = 73 \)
-
Answer: \( 73 \)
13.
3 + 49 =
- Add 3 to 49: \( 49 + 3 = 52 \)
-
Answer: \( 52 \)
14.
26 + 8 =
- Add 8 to 26: \( 26 + 8 = 34 \)
-
Answer: \( 34 \)
15.
8 + 12 =
- Add 8 to 12: \( 12 + 8 = 20 \)
-
Answer: \( 20 \)
---
Final Answers:
\[
\begin{aligned}
&\text{(1)} & 3 + 22 &= 25 \\
&\text{(2)} & 76 + 5 &= 81 \\
&\text{(3)} & 4 + 34 &= 38 \\
&\text{(4)} & 66 + 7 &= 73 \\
&\text{(5)} & 7 + 41 &= 48 \\
&\text{(6)} & 73 + 5 &= 78 \\
&\text{(7)} & 9 + 80 &= 89 \\
&\text{(8)} & 95 + 4 &= 99 \\
&\text{(9)} & 7 + 44 &= 51 \\
&\text{(10)} & 82 + 3 &= 85 \\
&\text{(11)} & 8 + 96 &= 104 \\
&\text{(12)} & 67 + 6 &= 73 \\
&\text{(13)} & 3 + 49 &= 52 \\
&\text{(14)} & 26 + 8 &= 34 \\
&\text{(15)} & 8 + 12 &= 20 \\
\end{aligned}
\]
Boxed Final Answer:
\[
\boxed{
\begin{aligned}
&25, 81, 38, 73, 48, 78, 89, 99, 51, 85, 104, 73, 52, 34, 20
\end{aligned}
}
\]
Parent Tip: Review the logic above to help your child master the concept of horizontal addition worksheet.
