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Math Vocabulary to Know FOR MULTIPLICATION AND DIVISION Array- shows equal groups in rows and columns associative property of multiplication-the property that states that changing the grouping of the factors does not change the product. basic fact- facts from 0 x 0 to 10 x 10 commutative property of multiplication- the property that states that changing the order of the factors does not change the product. 4x5=5x4 distributive property of multiplication-the property that states that multiplying a sum by a factor is the same as multiplying each addend by the factor and adding the products. Dividend- number being divided Division-an operation that separates objects into equal groups. Divisor- a number that a dividend is divided by equal groups- groups that contain the same number of objects factor-a number being multiplied in a multiplication problem. 1 mental math- calculating answers in your head, using facts that you know multiple-a product of two numbers multiplication-an operation that joins equal groups multiplication table- a grid that shows the multiplication basic facts. Parentheses- Symbols placed around numbers () to show that those calculations must be done first in finding an answer. Product- the answer to a multiplication problem. Quotient- the answer in a division problem repeated addition- adding the same number multiple times; has the same result as multi-plication. 4+4+4 = 4x3 repeated subtraction-subtracting the same number multiple times; is related to division square number- a product that is made by multiplying identical factors. 4 x 4 = 16 square product- the same as a square number 2