Addition to Twenty math worksheet for practicing basic addition skills.

The image you uploaded is a math worksheet titled "Addition to Twenty." The task involves solving a series of addition problems where the sum of each pair of numbers does not exceed 20. Below, I will explain how to solve these problems and provide the solutions.

Explanation of the Solution

1. Understanding the Task: Each row contains pairs of numbers that need to be added together. The goal is to find the sum of each pair.
2. Basic Addition Rules: To solve each problem, simply add the two numbers in each pair.
3. Constraints: All sums should be less than or equal to 20, as indicated by the title "Addition to Twenty."

Step-by-Step Solution

I will solve each row systematically:

#### Row 1:
\[
\begin{aligned}
&3 + 5 = 8 \\
&3 + 4 = 7 \\
&9 + 5 = 14 \\
&8 + 8 = 16 \\
&4 + 6 = 10 \\
&4 + 4 = 8 \\
&2 + 3 = 5 \\
&4 + 2 = 6 \\
&6 + 4 = 10
\end{aligned}
\]

#### Row 2:
\[
\begin{aligned}
&10 + 5 = 15 \\
&10 + 6 = 16 \\
&7 + 2 = 9 \\
&3 + 3 = 6 \\
&5 + 5 = 10 \\
&2 + 8 = 10 \\
&1 + 7 = 8 \\
&6 + 3 = 9 \\
&5 + 7 = 12 \\
&10 + 7 = 17
\end{aligned}
\]

#### Row 3:
\[
\begin{aligned}
&7 + 4 = 11 \\
&7 + 9 = 16 \\
&6 + 7 = 13 \\
&5 + 9 = 14 \\
&4 + 5 = 9 \\
&8 + 4 = 12 \\
&6 + 8 = 14 \\
&2 + 6 = 8 \\
&4 + 9 = 13 \\
&5 + 3 = 8
\end{aligned}
\]

#### Row 4:
\[
\begin{aligned}
&7 + 7 = 14 \\
&9 + 9 = 18 \\
&8 + 9 = 17 \\
&9 + 5 = 14 \\
&10 + 3 = 13 \\
&3 + 2 = 5 \\
&5 + 1 = 6 \\
&6 + 5 = 11 \\
&2 + 7 = 9 \\
&1 + 5 = 6
\end{aligned}
\]

#### Row 5:
\[
\begin{aligned}
&1 + 6 = 7 \\
&6 + 1 = 7 \\
&3 + 1 = 4 \\
&9 + 2 = 11 \\
&3 + 6 = 9 \\
&9 + 3 = 12 \\
&4 + 8 = 12 \\
&2 + 4 = 6 \\
&9 + 8 = 17 \\
&5 + 4 = 9
\end{aligned}
\]

#### Row 6:
\[
\begin{aligned}
&8 + 6 = 14 \\
&7 + 5 = 12 \\
&8 + 4 = 12 \\
&10 + 2 = 12 \\
&10 + 8 = 18 \\
&1 + 4 = 5 \\
&9 + 6 = 15 \\
&8 + 7 = 15 \\
&8 + 6 = 14 \\
&10 + 10 = 20
\end{aligned}
\]

#### Row 7:
\[
\begin{aligned}
&4 + 3 = 7 \\
&3 + 9 = 12 \\
&5 + 6 = 11 \\
&7 + 3 = 10 \\
&6 + 6 = 12 \\
&4 + 7 = 11 \\
&3 + 7 = 10 \\
&8 + 8 = 16 \\
&2 + 5 = 7 \\
&8 + 2 = 10
\end{aligned}
\]

#### Row 8:
\[
\begin{aligned}
&7 + 10 = 17 \\
&9 + 9 = 18 \\
&5 + 2 = 7 \\
&1 + 8 = 9 \\
&1 + 2 = 3 \\
&7 + 5 = 12 \\
&1 + 3 = 4 \\
&10 + 1 = 11 \\
&6 + 9 = 15 \\
&5 + 10 = 15
\end{aligned}
\]

#### Row 9:
\[
\begin{aligned}
&8 + 1 = 9 \\
&10 + 10 = 20 \\
&8 + 2 = 10 \\
&2 + 9 = 11 \\
&10 + 9 = 19 \\
&8 + 8 = 16 \\
&4 + 1 = 5 \\
&10 + 2 = 12 \\
&2 + 10 = 12 \\
&10 + 2 = 12
\end{aligned}
\]

#### Row 10:
\[
\begin{aligned}
&9 + 1 = 10 \\
&7 + 6 = 13 \\
&4 + 10 = 14 \\
&3 + 8 = 11 \\
&1 + 9 = 10 \\
&3 + 1 = 4 \\
&1 + 9 = 10 \\
&1 + 10 = 11 \\
&2 + 10 = 12 \\
&2 + 2 = 4
\end{aligned}
\]

Final Answer

Here are all the solutions written out for clarity:
\[
\boxed{
\begin{array}{cccccccccc}
8 & 7 & 14 & 16 & 10 & 8 & 5 & 6 & 10 \\
15 & 16 & 9 & 6 & 10 & 10 & 8 & 9 & 12 & 17 \\
11 & 16 & 13 & 14 & 9 & 12 & 14 & 8 & 13 & 8 \\
14 & 18 & 17 & 14 & 13 & 5 & 6 & 11 & 9 & 6 \\
7 & 7 & 4 & 11 & 9 & 12 & 12 & 6 & 17 & 9 \\
14 & 12 & 12 & 12 & 18 & 5 & 15 & 15 & 14 & 20 \\
7 & 12 & 11 & 10 & 12 & 11 & 10 & 16 & 7 & 10 \\
17 & 18 & 7 & 9 & 3 & 12 & 4 & 11 & 15 & 15 \\
9 & 20 & 10 & 11 & 19 & 16 & 5 & 12 & 12 & 12 \\
10 & 13 & 14 & 11 & 10 & 4 & 10 & 11 & 12 & 4
\end{array}
}
\]