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# Math Vocabulary

### Lessons 1-3

TermDefinition
digits The symbols 0,1,2,3,4,5,6,7,8,9 used to write numbers.
word form A number written in words. Example 125=one hundred twenty five.
Expanded form A number written as the sum of the values of its digits. Example 247=200+40+7
fact family A group of related facts using the same numbers.
difference The answer when subtracting two numbers.
estimate To give a number or answer that tells about how much or how many.
round to replace a number with another number that tells about how much or how many.
Zero Property of Addition The sum of zero and any number is that number. 3+0=3
standard form A number written in a way that shows only its digit. 385
Created by: woodsdale3