Topic 3 Vocabulary

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This property states that you can change the grouping of the factors and the product stays the same.

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A numerical expression contains numbers and at least one operation (+-×÷)

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This property states that multiplying a sum (or difference) by a number is the same as multiplying each number in the sum (or difference) by that number and adding (or subtracting) the products.

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Choosing numbers close to the numbers in a problem to make the computation easier, and then adjusting the answer for the numbers chosen

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This property states that the order of factors can be changed, but the product stays the same.

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products found by breaking one factor in a multiplication problem into ones, tens, hundreds, and so on and then multiplying each of these by the other factor.

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A way to display objects in rows and columns

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A rectangle used to model multiplication and division of whole numbers.