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Multiplication Vocabulary Review

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Factors & Products 4 x 6 = 24 4 and 6 are factors – the numbers being multiplied together. 24 is the product – the answer to a multiplication problem.

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**Estimate Estimate – to make a good guess by rounding.**

In the problem 73 x 6, round 73 to 70 and DO NOT round the single digit number of 6! This would give you a new problem of 70 x 6. You can then use the basic math fact of 7 x 6 = 42 to help you get the product. Simply count the number of zeros in the factors and add them to the end of the basic math fact answer. The product is 420!

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**Multiple A multiple is the product of any two whole numbers.**

For example: 3, 6, 9, 12, and 15 are multiples of 3. 3x1=3 3x2=6 3x3=9 3x4=12 3x5=15

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**Properties of Multiplication**

Zero Property of Multiplication – the product (answer) of any number times 0 is 0! x0=0 or 9x0=0 Identity Property of Multiplication – the product (answer) of any number times 1 is that number! 4x1=4 or 8x1=8 Commutative Property of Multiplication – two numbers can be multiplied in any order and the product (answer) is the same. 4x2=8 and 2x4=8.

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**Properties of Multiplication**

Associative Property of Multiplication – (3x2)x4 = 3x(4x2) You can change the grouping of the numbers you multiply! You will still get the same product (answer).

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