Mathematics Vocabulary

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Commutative Property of Multiplication

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The order in which two numbers are multiplied does not change the product. Example: 5 x 3 = 3 x 5

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Composite Number

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A number with three or more factors. Example: 6 has 4 factors.

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Dividend

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In a division problem, it is the number you are dividing or breaking into equal groups.

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Divisor

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In a division equation, it is the number you are dividing by.

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Fact Family

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A group of related facts using the same numbers. Example: Fact family for 3, 5, 15: 3 x 5 = 15, 5 x 3 = 15, 15 ÷ 5 = 3, 15 ÷ 3 = 5.

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Factor

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A number that divides a whole number evenly. Also, a number that is multiplied by another number.

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Multiple

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The product of a whole number and any other whole number. You can find them by counting by that number. Example: 3, 6, 9, 12, 15…

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Multiplicative Comparison

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A statement that tells the relationship between two quantities (amounts) using multiplication. Example: 15 is 3 times as many as 5.

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Prime Number

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A number with only two factors (1 and itself). Example: 7: factors are 1 and 7.

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Product

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The answer to a multiplication problem.