Word used to have a Calculate function on the Tools menu. Select numbers anywhere in the text, and, with a click, Word could add, divide, and more. Press <Shift>- <Insert>, and the result was pasted into your document. Word could even resolve expressions such as ‘(5+5)*(3+3)’. This feature remains part of Word; it’s just hidden. To make it resurface, select Tools->Customize, and choose the Command tab and then Tools in the Categories panel on the left. Over in the right panel, locate Tools Calculate, grab it, and drag it over to a Word toolbar. To use the feature, highlight numbers in your document and click the new Tools Calculate button on your toolbar. The results appear in the status bar in Word’s lower-left corner.