Proof Your Work Well, it all adds up, but is it right? Test it. Enter a date in Cell B6. Enter a Description in Cell C6: Deposit. Enter $500.00 in Cell E6. Is the balance $581.50?   5. Try it: Audit the Equation Double click Cell F6.   What Do You See? Each cell referenced in the equation is highlighted in color.   6. Name the Spreadsheet Double click the tab at the bottom of the spreadsheet, Sheet1. Type: Checkbook. OK, step-by-step, that's how to make a simple checkbook.