Equation  

Shows that two quantities or expressions are equal using an equal sign (=).

5 + 5 = 10 

Shows numbers multiplied together to equal another number. 

3 x 5 = 15

factor factor product 

column 

A part of a table or array that contains items uuuu arranged vertically

♣♣♣♣

♣♣♣♣

♣♣♣♣

♣♣♣♣

row

A part of a table or array that contains items arranged horizontally. 

♣♣♣♣

♣♣♣♣

♣♣♣♣

♣♣♣♣

array 

An arrangement of objects, pictures, or numbers in columns and rows. 

♦♦♦♦

♦♦♦♦

♦♦♦♦

♦♦♦♦

commutative property 

The order of the factors can be switched without changing the product. 

3 x 2 = 2 x 3 

factors 

Numbers that are multiplied to give a product. 

4 x 5 = 20 

product 

The answer when you multiply numbers. 

4 x 5 = 20 

equal groups 

Groups that have the same number. 

3 x 5 = 5 + 5 + 5 

equal groups 

Groups that have the same number. 

3 x 5 = 5 + 5 + 5 

function table

A table of ordered pairs that shows a function. For every input number there is only one possible output number.

Rule: add 2

1 3

2 4

3 5

4 6 

division

The mathematical operation that separates an amount into smaller equal groups to fid the number of groups OR the number in each group.

12 ÷ 3 = 4  

dividend 

The number that is divided in division.

 12 ÷ 3 = 4  

divisor

The number that you divide by in division. 

 12 ÷ 3 = 4 

quotient

The answer when you divide numbers.

12 ÷ 3 = 4  

even number

A whole number that is a multiple of 2. The ones digit in an even number is 0, 2, 4, 6, or 8.

odd 

A whole number that is not a multiple of 2. The ones digit in an odd number is 1, 3, 5, 7, or 9.

area

The total number of square units that covers a figure. 

quick 9s 

A shortcut for multiplying by 9. Bend down finger to represent multiplier. Fingers on left represent tens. Fingers on right represent ones 

distributive property 

You can multiply a sum by a number, or multiply each addend by the number and add the products; the result is the same. 

repeated addition 

The same number is added several times. A repeated addition equation relates to a multiplication equation.

3 + 3 + 3 + 3

4 x 3  

associative property

Changing the way in which factors are grouped does not change the product

2 x (3 x 4) = 24 

count-bys 

products that are found by skip counting a particular number; 5 count-bys would be 5, 10, 15, 20, 25, 30, and so on 

Point 

A specfic location on the number line. 

Decompose 

To Break down 

Non Unit Fraction 

fractions with numerators other than one. 

2/3 

Unit Fraction 

Fractions with numerator of 1