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Vocabulary

3rd Grade Math Vocabulary

TermDefinition
unit fraction only including one part, always has a numerator of 1
equal shares same size pieces
numerator number counted, top number in a fraction
denominator number that makes 1 whole, bottom number in fraction
rounding a strategy for estimation to a certain place value
compatible numbers a strategy for estimation using number that are easy to use mental math with
fraction of a whole part of 1 whole
fraction of a group part of 1 group
equivalent fractions two or more fractions representing the same amount, or equal amounts
same numerator strategy if the numerator is the same, look at the size of the pieces
same denominator strategy when the sizes are the same, compare how many of each you have
commutative property of addition changing the order doesn't change the sum
associative property of addition grouping numbers differently doesn't change the sum
sum solution or answer to an addition problem
Created by: lgillam
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