Math addition puzzle worksheet for practicing basic arithmetic skills.
A math worksheet featuring six addition puzzles with grids for calculating sums of numbers in rows and columns.
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Show Answer Key & Explanations
Step-by-step solution for: free Math puzzles for 1st grade | Maths puzzles, Fun math ...
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Show Answer Key & Explanations
Step-by-step solution for: free Math puzzles for 1st grade | Maths puzzles, Fun math ...
Problem Description:
The task involves solving a series of addition puzzles. Each puzzle consists of a grid where you need to calculate the sums of each row and column. The results of the rows are filled in the column on the right, and the results of the columns are filled in the row at the bottom.
Solution Approach:
1. Calculate Each Row: Add the numbers in each row and write the result in the column on the right.
2. Calculate Each Column: Add the numbers in each column and write the result in the row at the bottom.
3. Repeat for All Puzzles: Perform the above steps for all six puzzles.
Detailed Solution:
#### Puzzle 1:
```
10 + 10 = 20
+ + +
6 + 4 = 10
= = =
16 14 30
```
- Row 1: \( 10 + 10 = 20 \)
- Row 2: \( 6 + 4 = 10 \)
- Column 1: \( 10 + 6 = 16 \)
- Column 2: \( 10 + 4 = 14 \)
- Column 3: \( 20 + 10 = 30 \)
#### Puzzle 2:
```
9 + 9 = 18
+ + +
4 + 1 = 5
= = =
13 10 23
```
- Row 1: \( 9 + 9 = 18 \)
- Row 2: \( 4 + 1 = 5 \)
- Column 1: \( 9 + 4 = 13 \)
- Column 2: \( 9 + 1 = 10 \)
- Column 3: \( 18 + 5 = 23 \)
#### Puzzle 3:
```
3 + 4 = 7
+ + +
5 + 2 = 7
= = =
8 6 14
```
- Row 1: \( 3 + 4 = 7 \)
- Row 2: \( 5 + 2 = 7 \)
- Column 1: \( 3 + 5 = 8 \)
- Column 2: \( 4 + 2 = 6 \)
- Column 3: \( 7 + 7 = 14 \)
#### Puzzle 4:
```
8 + 8 = 16
+ + +
9 + 1 = 10
= = =
17 9 26
```
- Row 1: \( 8 + 8 = 16 \)
- Row 2: \( 9 + 1 = 10 \)
- Column 1: \( 8 + 9 = 17 \)
- Column 2: \( 8 + 1 = 9 \)
- Column 3: \( 16 + 10 = 26 \)
#### Puzzle 5:
```
2 + 4 = 6
+ + +
9 + 2 = 11
= = =
11 6 17
```
- Row 1: \( 2 + 4 = 6 \)
- Row 2: \( 9 + 2 = 11 \)
- Column 1: \( 2 + 9 = 11 \)
- Column 2: \( 4 + 2 = 6 \)
- Column 3: \( 6 + 11 = 17 \)
#### Puzzle 6:
```
6 + 5 = 11
+ + +
3 + 9 = 12
= = =
9 14 23
```
- Row 1: \( 6 + 5 = 11 \)
- Row 2: \( 3 + 9 = 12 \)
- Column 1: \( 6 + 3 = 9 \)
- Column 2: \( 5 + 9 = 14 \)
- Column 3: \( 11 + 12 = 23 \)
Final Answer:
```
Puzzle 1:
10 + 10 = 20
+ + +
6 + 4 = 10
= = =
16 14 30
Puzzle 2:
9 + 9 = 18
+ + +
4 + 1 = 5
= = =
13 10 23
Puzzle 3:
3 + 4 = 7
+ + +
5 + 2 = 7
= = =
8 6 14
Puzzle 4:
8 + 8 = 16
+ + +
9 + 1 = 10
= = =
17 9 26
Puzzle 5:
2 + 4 = 6
+ + +
9 + 2 = 11
= = =
11 6 17
Puzzle 6:
6 + 5 = 11
+ + +
3 + 9 = 12
= = =
9 14 23
```
Boxed Final Answer:
\[
\boxed{
\begin{array}{ccc|c}
10 & + & 10 & 20 \\
+ & + & + & \\
6 & + & 4 & 10 \\
= & = & = & \\
16 & 14 & 30 & \\
\hline
\end{array}
\quad
\begin{array}{ccc|c}
9 & + & 9 & 18 \\
+ & + & + & \\
4 & + & 1 & 5 \\
= & = & = & \\
13 & 10 & 23 & \\
\hline
\end{array}
\quad
\begin{array}{ccc|c}
3 & + & 4 & 7 \\
+ & + & + & \\
5 & + & 2 & 7 \\
= & = & = & \\
8 & 6 & 14 & \\
\hline
\end{array}
\quad
\begin{array}{ccc|c}
8 & + & 8 & 16 \\
+ & + & + & \\
9 & + & 1 & 10 \\
= & = & = & \\
17 & 9 & 26 & \\
\hline
\end{array}
\quad
\begin{array}{ccc|c}
2 & + & 4 & 6 \\
+ & + & + & \\
9 & + & 2 & 11 \\
= & = & = & \\
11 & 6 & 17 & \\
\hline
\end{array}
\quad
\begin{array}{ccc|c}
6 & + & 5 & 11 \\
+ & + & + & \\
3 & + & 9 & 12 \\
= & = & = & \\
9 & 14 & 23 & \\
\hline
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of algebra puzzles worksheet.