Business people use spreadsheets to organize and analyze data. The column letter and row number, as shown, identifies the cells. Activity 1 Below is...

Business people use spreadsheets to organize and analyze data. The column letter and row number, as shown, identifies the cells. Activity 1 Below is an example of a simple spreadsheet. What is the number in cell B2? What is the number in cell C1? What is the number in cell A3? Use mental math to find the sum of each row, column, and diagonal. What did you discover about all of the sums?