4.NBT.5 Multiplication Review

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What is multiplication?

Back

Multiplication is a mathematical operation that represents the process of adding a number to itself a certain number of times. It is often referred to as repeated addition.

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What is the product in multiplication?

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The product is the result of multiplying two or more numbers together.

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How do you represent multiplication in mathematical notation?

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Multiplication is typically represented by the symbol '×' or '*'. For example, 4 × 5 = 20.

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What is an area model in multiplication?

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An area model is a visual representation of multiplication that uses rectangles to show how two numbers can be multiplied together by dividing them into parts.

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What does it mean to multiply a number by a group?

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Multiplying a number by a group means to find the total amount when you have a certain number of groups, each containing the same quantity.

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How can you check your multiplication answer?

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You can check your multiplication answer by using the inverse operation, which is division. For example, if you calculated 4 × 5 = 20, you can check by dividing 20 by 4 or 5.

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What is the associative property of multiplication?

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The associative property of multiplication states that the way in which numbers are grouped in multiplication does not change the product. For example, (2 × 3) × 4 = 2 × (3 × 4).

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What is the commutative property of multiplication?

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The commutative property of multiplication states that changing the order of the numbers being multiplied does not change the product. For example, 3 × 4 = 4 × 3.

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What is a factor in multiplication?

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A factor is a number that is multiplied by another number to get a product. For example, in the multiplication 6 × 7 = 42, both 6 and 7 are factors.

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How do you multiply a two-digit number by a one-digit number?

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To multiply a two-digit number by a one-digit number, you can use the distributive property, breaking the two-digit number into tens and ones, multiplying each part by the one-digit number, and then adding the results.