6 Undo Clipboard Font 19 A19 B C 221 D Cell Styles Format : Data Alignment Number Styles Eding Analy E F H 1 Click on the "Ratios" tab and enter your name in Cell C1. If Cell C1 is left blank, you will not be able to see your score. Each yellow cell requires a formula. 2 3 The formula must only contain cell addresses. 4 Each correct formula will begin with ", +, or -. 5 6 The basic mathematical operators are +, -, * and/ 7 Addition: To add the values in cells A1 and B4, the formula is =A1+B4 8 Subtraction: To subtract the value in cell B4 from the value in cell A1, the formula is =A1-84 9 Multiplication: To multiply the values in cells A1 and B4, the formula is =A1*84 10 Division: To divide the value in cell A1 by the value in cell 84, the formula is =A1/B4 11 12 Using the AVERAGE function 13 The AVERAGE function has the following syntax: AVERAGE(Number 1, Number 2...) 14 Instructions Ratios Summary of Ratios + Ready Accessibility: Investigate E