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Chapter 4-5 Vocab.
Vocabulary
Vocabulary | Definitions |
---|---|
sum | the result of adding numbers |
estimate | to find about how much or how many |
front-end estimation | a method of estimating in which only the front digits are used |
expression | the part of a number sentence that combines numbers and operation signs |
not equal to ≠ | a relation symbol used to show that two numbers are not equal to each other |
subtract | to find the difference between two quantities |
regrouping | exchanging amounts of equal value to rename a number |
rounding | a method of estimating by substituting a number that is close |