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Addition practice worksheet for children with basic math problems.

A printable addition worksheet for kids featuring simple math problems with numbers 1 to 20, designed for elementary math practice.

A printable addition worksheet for kids featuring simple math problems with numbers 1 to 20, designed for elementary math practice.

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Show Answer Key & Explanations Step-by-step solution for: 2 Digit + 1 Digit Addition Worksheet 5 Worksheets

Problem Description:


The image shows a worksheet titled "Addition" with several addition problems. Each problem involves adding two numbers, and the task is to solve each addition problem.

Solution Approach:


We will solve each addition problem step by step. The problems are organized in rows and columns, and we will compute the sum for each pair of numbers.

---

Step-by-Step Solution:



#### Row 1:
1. \( 12 + 5 = 17 \)
2. \( 3 + 4 = 7 \)
3. \( 8 + 5 = 13 \)
4. \( 9 + 7 = 16 \)
5. \( 10 + 1 = 11 \)

#### Row 2:
1. \( 19 + 1 = 20 \)
2. \( 8 + 7 = 15 \)
3. \( 9 + 8 = 17 \)
4. \( 17 + 4 = 21 \)
5. \( 14 + 6 = 20 \)

#### Row 3:
1. \( 11 + 3 = 14 \)
2. \( 15 + 2 = 17 \)
3. \( 13 + 4 = 17 \)
4. \( 18 + 2 = 20 \)
5. \( 17 + 3 = 20 \)

#### Row 4:
1. \( 15 + 4 = 19 \)
2. \( 12 + 5 = 17 \)
3. \( 15 + 3 = 18 \)
4. \( 11 + 7 = 18 \)
5. \( 12 + 7 = 19 \)

#### Row 5:
1. \( 10 + 3 = 13 \)
2. \( 7 + 11 = 18 \)
3. \( 12 + 5 = 17 \)
4. \( 17 + 3 = 20 \)
5. \( 10 + 8 = 18 \)

#### Row 6:
1. \( 8 + 9 = 17 \)
2. \( 9 + 13 = 22 \)
3. \( 18 + 2 = 20 \)
4. \( 15 + 5 = 20 \)
5. \( 13 + 5 = 18 \)

---

Final Answer:


The completed worksheet with all sums is as follows:

```
+ Addition +
Name

12 + 5 = 17 3 + 4 = 7 8 + 5 = 13 9 + 7 = 16 10 + 1 = 11
19 + 1 = 20 8 + 7 = 15 9 + 8 = 17 17 + 4 = 21 14 + 6 = 20
11 + 3 = 14 15 + 2 = 17 13 + 4 = 17 18 + 2 = 20 17 + 3 = 20
15 + 4 = 19 12 + 5 = 17 15 + 3 = 18 11 + 7 = 18 12 + 7 = 19
10 + 3 = 13 7 + 11 = 18 12 + 5 = 17 17 + 3 = 20 10 + 8 = 18
8 + 9 = 17 9 + 13 = 22 18 + 2 = 20 15 + 5 = 20 13 + 5 = 18
```

Thus, the final answer is:

\[
\boxed{
\begin{array}{ccccc}
17 & 7 & 13 & 16 & 11 \\
20 & 15 & 17 & 21 & 20 \\
14 & 17 & 17 & 20 & 20 \\
19 & 17 & 18 & 18 & 19 \\
13 & 18 & 17 & 20 & 18 \\
17 & 22 & 20 & 20 & 18 \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of 1 digit addition worksheet.
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