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Unit 2
Math Vocabulary for Unit 2
| Term | Definition |
|---|---|
| expression | a mathematical sentence involving only numbers, letter, and 1 or more operation symbols with NO equal sign |
| variable | where a letter stands in for an unknown number/quantity |
| equivalent expression | 2 expressions that can be written differently but that are equal, for example: 2 + 3 is an equivalent expression to 1+4 |
| parentheses | like brackets, symbols that group numbers |
| math operation | adding, subtracting, multiplying or dividing |
| order of operations | the rules/order in which math problems are to be solved (PEMDAS) |
| simplify | to solve to the simplest form |
| brackets | like parenthese, symbols that group numbers |
| numerical expressions | a number phrase that has numbers, adding, subtracting, multiplying, or dividing |
| unknown quantity | an amount that is not known, where a variable stands in for it |