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Multiplication Vocabulary

3.OA.1:  Interpret products of whole numbers, e.g., interpret 5 X 7 as the total number of objects in 5 groups of 7 objects each.

3.OA.2:  I can understand division by thinking about how one group can be divided into smaller groups.

3.OA.3:  I can use what I know about multiplication and division to solve word problems.

3.OA.6: I can find the answer to a division problem by thinking of the missing factor in a multiplication problem.

Math Vocabulary

EQUATION- a mathematical sentence with an equals sign (=).  The amount on one side of the equal sign has the same value as the amount on the other side.

6 + 4 =10 (addition equation)                3 X 2 = 6 (multiplication equation)

REPEATED ADDITION- adding the same number over and over.

Example: 3 + 3 + 3 + 3 + 3 = 15

ARRAY- a set of objects or numbers arranged in rows and columns.

PRODUCT- answer to a multiplication problem.  3 X 2 = 6  (6 is the product)

FACTORS- a whole number that is multiplied with another number to make a third number.  3 X 4 = 12  (3 and 4 are factors)

MULTIPLY-an operation showing how many times a number is added to itself. (5 X 3= 15)

DIVIDE- partitioning a total into equal groups to show how many equal groups add up to a specific number. (15 divided by 5= 3)

QUOTIENT- the answer when one number is divided by another. (the answer to an division problem)

EQUAL GROUPS- having the same amount or value

UNIT FORM- an example is :  6 twos OR 6 groups of two

UNKNOWN FACTOR- the "missing" factor or quantity (total) in multiplication or division

COMMUTATIVE PROPERTY OF MULTIPLICATION -the order in which you add or multiply numbers does not change does not change their sum or product.  6 x 2 = 2 x 6

Distributive Property of Multiplication- property that states that multiplying a sum by a number is the same as mulitplying each addend by the number and then adding the products.  ( 2 x 5). + ( 3 x 4) = 10 + 12=22

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