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Question

Add each column and row. Check your work by finding the grand total.

123+39+221=140+66+84=155+31+219=79+51+106=\begin{array}{r} 123+39+221= \\ 140+66+84= \\ 155+31+219= \\ 79+51+106= \end{array}

Solution

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Answered 1 year ago
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For this exercise, we add each row to get the sum of the given numbers given on each row. Then, we find the sum of each column and get the total sum of all the columns. To check our answers, we find the grand total by adding the total of the sum of each row and the total of the sum of each column to see if they are equal.

What is the significance of the grand total?

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