All formulas begin with an ____ To add numbers together, we must use ____ function. The sum function is used for ____ only. To divide, Mr Clark reminded us that we ____ the numbers. Therefore, we use the slash key to ____. To multiply, we use the ____ key. We also call this key the wee ____. Finally, to subtract, we use the ____ key. The same symbol we will use in ____.

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