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Texas Go Math 3rd Gr

Module 4 Vocabulary

estimate a number close to an exact amount; used when an exact amount is not needed
compatible number numbers that are easy to compute mentally and are close to the real numbers
commutative Property of Addition states that you can add two or more numbers in any order and get the same sum. 16+9 = 9+16
Associative Property of Addition states that you can group addends in different ways and still get the same sum
Grouping Property also known as the Associative Property of Addition
addend a number that is added to another
sum the answer to an addition problem
addition the process of adding two or more numbers together
subtraction taking one number away from another
rounding making a number simpler but keeping its value close to what it was; used when an exact amount is not needed
doubles Double Facts are additions in which a number is added to itself. For example, 1 + 1, 2 + 2
Created by: MsReamy