Every number in a calculation has a name, and this page asks for those names. This 3rd grade math vocabulary for operations worksheet has six number sentences, labeled a to f. There is one for each operation, plus an extra addition and multiplication. In each sentence, the page underlines one or two numbers, and below it, three or four boxes offer names such as sum, addend, divisor or product. Your child checks the box that names the underlined numbers. A white cat with a rainbow unicorn horn sits at the top, while page two shows every correct box with a pink tick.