Vocabulary Dec. 4-8

An operation in which a number is added to itself a specific number of times (repeated addition)

• addition
• subtraction
• multiplication
• division

Mathematical principles that are always true (e.g., commutative, associative, distributive, identity, and inverse, to name a few).

• properties of operations
• properties of math
• properties of gravity
• properties of electricity

One of the numbers multiplied to find a product.

• multiple
• product
• factor
• addend

The result when two numbers are multiplied.

• sum
• difference
• quotient
• product

The result of multiplying a whole number by other whole numbers; skip-counting by a number

• multiple
• factor
• addend
• subtrahend

A model for multiplication problems, in which the length and width of a rectangle represents the factors.

• equal groups
• area model
• building up
• number line

To Separate a number into parts using other numbers

• decompose
• subtract
• add
• double

To divide into two parts of equal or roughly equal size

• doubling
• halving
• decompose
• multiplying

To become twice as much or as many.

• doubling
• halving
• decomposing
• dividing

A concrete model for multiplication in which items are arranged in rows and columns.

• area model
• equal group
• number line
• array model