Name/Number: _____________________________
Date: __________
Weekly Math Vocabulary STUDY GUIDE – Week 1
Word
Definition
Array
a way of showing objects in rows
and columns; makes the shape of
a rectangle or square
Place Value
the place where a digit is located
in a number
Commutative
Property of
Addition
numbers can be added in any
order and the sum will be the
same
Divisor
the number you divide by
Expanded
Form
a number written as a sum of the
values of the digits
Example
4,276
2 is in the hundreds
Fact Families
a group of related facts using the
same numbers
Multiples
the product you get when you
multiply a number by other whole
numbers (skip counting)
Ordinal
Number
a number used to tell the order of
people or objects
Rounding
a way to estimate a number to its
nearest place value
Subtrahend
the number taken away
Study Hard! Your QUIZ will be on Friday!