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Chpt 4
Vocabulary from Chapter 4
Vocabulary Word | Definition |
---|---|
Order Property | addends can be added in any order without changing the sum |
Grouping Property | addends can be grouped in any order without changing the sum |
Identity Property | the sum of zero and any number is the number |
expression | a mathematical phrase that combines numbers, operation signs, and sometimes variables; it does not have an equal sign |
variable | a letter or symbol that stands for one number |
equation | an algebraic or numerical sentence that shows two quantities are equal |
solution | a value that, when substituted for the variable, makes an equation or an |
inequality | a number sentence that shows that |
Commutative Property | reordering the addends does not change a sum |
Associative Property | regrouping the addends does not change a sum |
compensation | when one addend is changed to a multiple of ten, the other addend is adjusted to keep the balance |