Multiply by 1-Digit Numbers

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What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3).

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CCSS.3.OA.A.1

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What does it mean to multiply by a 1-digit number?

Back

Multiplying by a 1-digit number means you are multiplying a number by any whole number from 0 to 9.

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CCSS.4.NBT.B.5

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If you have 4 groups of 5 apples, how many apples do you have in total?

Back

20 apples (4 x 5 = 20).

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CCSS.2.OA.C.3

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What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the numbers you are multiplying does not change the product. For example, 2 x 3 = 3 x 2.

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CCSS.3.OA.B.5

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What is the associative property of multiplication?

Back

The associative property states that when multiplying three or more numbers, the way in which the numbers are grouped does not change the product. For example, (2 x 3) x 4 = 2 x (3 x 4).

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CCSS.3.OA.B.5

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How do you solve a multiplication problem with a 1-digit number?

Back

To solve a multiplication problem with a 1-digit number, you can use repeated addition, arrays, or skip counting.

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CCSS.2.OA.C.3

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What is a factor in multiplication?

Back

A factor is a number that is multiplied by another number to get a product. For example, in 4 x 5, both 4 and 5 are factors.

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CCSS.4.OA.B.4

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What is a product in multiplication?

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The product is the result of multiplying two or more numbers together. For example, the product of 6 and 7 is 42.

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CCSS.3.OA.A.1

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If you multiply a number by 1, what is the result?

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The result is the same number. For example, 7 x 1 = 7.

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CCSS.3.OA.B.5

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If you multiply a number by 0, what is the result?

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The result is always 0. For example, 5 x 0 = 0.

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CCSS.3.OA.C.7