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Vocabulary
3rd Grade Math Vocabulary
Term | Definition |
---|---|
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 |