Math Module 1 Vocabulary
Array
a set of numbers or objects that follow a specific
pattern.
1
Column
a line in an array that goes north/south or up/down.
2
Commutative Propertyfactors in a multiplication sentence can switch
places.
4 x 2 = 8 or 2 x 4 = 8
3
Distributive Propertyone factor stays the same while the other factor is
decomposed to multiply.
7x8=56
(7x3) + (7x5)=56
Equal Groupsone factor is the number of objects (SIZE) of a
group and the other is the number of groups.
4
Equationa statement that 2 expressions are equal.
3 x 4 = 12
or
24 / 3 = 2 x 4
Distributein reference to the Distributive Property. To
decompose/break-down.
10= 8+2 or 12= 5+7
5
Divide/Divisionpartitioning a total into equal groups to show how
many equal groups add up to a specific number.
(14 / 7 = 2) (14 = 7 - 7)
Factused to refer to multiplication/division facts.
5x6=30
6x5=30
6
30/5=6
30/6=5
Factorsnumbers that are multiplied to equal a product.
6
x
3 = 18
factor x factor= product
Multiplication/Multiply-
7
an operation showing how many equal groups are
being combined.
4x3=12
Parentheses( ) used around a fact or numbers within an
equation.
8
Solve the ( ) first.
(5x4=20) or (3x4)x3=36
Quotientthe answer when one number is divided by another.
72
/
9
=
8
dividend / divisor = quotient
Rotate- turn,
used with reference to turning 90 degrees.
9
Rowa line in an array that goes east/west or right/left.
Size of Groupsfactor in a multiplication problem that refers to how
many are in a group.
10
Unknownthe missing factor or quantity in multiplication or
division.
36 / ? = 12
or
? x 2 = 24
11
Number Bondshows part-part-whole relationship.
12
Number Sentencesimilar to an equation, but does not have to have
equal sides.
z x 8=16 or 7< 2x4
Repeated Addition13
adding equal groups together.
2+2+2+2 = 8
or
4+4+4+4+4+4=24
Tape Diagrama model for multiplication / division problems.
14
15
5x10=50
10 + 10
+
10
+
10 +
10 = 50
Unitone segment of a partitioned tape diagram.
16
Valuehow much.
The value of w=12.
4 x w =48
DecomposeTo break apart a number.
17
18
8
10
or
18
9
9
18