Belleville Henderson CSD Home of the Panthers

Math Vocabulary Words

Please keep in a handy place at home for homework.

Equation - number sentence with an equals sign

                4 + 6 = 10

                10 – 6 = 4

                4 x 6 = 24

                24 ÷ 4 = 6

Multiplication - number operation that is more efficient (faster) than repeated addition

                4 + 4 + 4 + 4 + 4 + 4 = 6 x 4

Multiply - a math operation that uses factors to find the product

                4 x 6 = 24

Factors - in a multiplication sentence, the number of groups and the number in each group

                4 x 6 = 24

Product - answer to a multiplication equation

6 x 4 = 24

Array - organized picture with rows and columns

                X X X X

                X X X X

                X X X X

                X X X X

                X X X X

                X X X X

Row - goes across in an array                      Column - goes down in an array

                X X X X                                                                  X X X X

                X X X X                                                                  X X X X

                X X X X                                                                  X X X X

                X X X X                                                                  X X X X

                X X X X                                                                  X X X X

                X X X X                                                                  X X X X

Equal Groups - groups that are the same size (have the same amount)

Division - one large group broken into smaller equal groups

                24 ÷ 4 = 6

Divide - a math operation that breaks the total into smaller equal groups

                24 ÷ 4 = 6 - -> the total of 24 is broken into 4 equal groups of 6

Quotient - answer to a division equation

24 ÷ 4 = 6

Unknown - what you work to solve in a number sentence

(The “missing” factor or quantity in multiplication or division)

                4 + 6 = ___                          10 – ___ = 4

4 x 6 = ___                          24 ÷ ___ = 6

Commutative Property - factors can switch around and the total stays the same (in addition and multiplication sentences ONLY)

Rotate - switch from horizontal to vertical OR from vertical to horizontal

X X X X                                  X X X X X X

                X X X X                                  X X X X X X

                X X X X                                  X X X X X X

                X X X X                                  X X X X X X

                X X X X

                X X X X

Parentheses - show how to make groups in an equation, the operation inside gets done first

(The symbols ( ) used around a fact or numbers within an equation)

(1 x 4) + (5 x 4) = 6 x 4

                    4     +       20   = 6 x 4

                            24           = 6 x 4

Tape Diagram - a drawing that represents number relationships

(A method for modeling problems)

Sum - answer to an addition equation

6 + 4 = 10

Difference - answer to a subtraction equation

10 – 6 = 4

Distributive Property – break apart an equation into two smaller equations with one common factor

 (1 x 4) + (5 x 4) = 6 x 4  - -> In this equation, the common factor is 4,

                                                      and the 1 and the 5 are added together

Stamina - how long I can work and do my best without getting tired

                Example: This week I will work my hardest for 15 minutes straight.

   Next week I will work my hardest for 20 minutes straight.

Even – A number that can be divided by 2

2, 4, 6, 8, 10

Odd - having one left over as a remainder when divided by two

1, 3, 5, 7, 9

Multiple – Naming multiples of 10 – 10, 20, 30, 4

A number that can be divided by another number without a remainder.  15, 20, are multiples of five.

Number bond –A model used to show part- part –whole relationship.

Value – How much

Unit – One segment of a partitioned tape diagram.