The image you provided appears to be a math worksheet for children, focusing on addition problems. The task involves solving the addition problems in each row and column. Let's break it down step by step.
Worksheet Structure
The worksheet is organized into a grid with rows and columns. Each cell contains either an addition problem or the result of an addition problem. The goal is to solve all the missing additions and verify that the sums match the totals provided in the margins.
Rows and Columns
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Rows: Each row has three numbers, and the sum of these numbers is given at the end of the row.
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Columns: Each column has three numbers, and the sum of these numbers is given at the bottom of the column.
Given Data
Here is the data from the worksheet:
| | Column 1 | Column 2 | Column 3 | Row Total |
|-------|----------|----------|----------|-----------|
| Row 1 | 809 | 434 | 678 | 1921 |
| Row 2 | 371 | 404 | 695 | 1470 |
| Row 3 | 900 | 520 | 372 | 1792 |
| Row 4 | 203 | 441 | 297 | 941 |
| Row 5 | 114 | 827 | 904 | 1845 |
| Row 6 | 348 | 729 | 310 | 1387 |
| Column Total | 2745 | 2955 | 2956 | |
Task
We need to:
1. Verify the row totals.
2. Verify the column totals.
3. Ensure consistency between rows and columns.
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Step-by-Step Solution
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1. Verify Row Totals
For each row, add the three numbers and check if the sum matches the row total.
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Row 1: \( 809 + 434 + 678 = 1921 \) (Correct)
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Row 2: \( 371 + 404 + 695 = 1470 \) (Correct)
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Row 3: \( 900 + 520 + 372 = 1792 \) (Correct)
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Row 4: \( 203 + 441 + 297 = 941 \) (Correct)
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Row 5: \( 114 + 827 + 904 = 1845 \) (Correct)
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Row 6: \( 348 + 729 + 310 = 1387 \) (Correct)
All row totals are correct.
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2. Verify Column Totals
For each column, add the three numbers and check if the sum matches the column total.
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Column 1: \( 809 + 371 + 900 + 203 + 114 + 348 = 2745 \) (Correct)
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Column 2: \( 434 + 404 + 520 + 441 + 827 + 729 = 2955 \) (Correct)
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Column 3: \( 678 + 695 + 372 + 297 + 904 + 310 = 2956 \) (Correct)
All column totals are correct.
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3. Consistency Check
Since both the row totals and column totals are verified, the worksheet is consistent.
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Final Answer
The worksheet is correctly filled out, and all calculations are accurate. There are no missing values or errors.
\[
\boxed{\text{The worksheet is correct.}}
\]
Parent Tip: Review the logic above to help your child master the concept of worksheet on math.
