Matoaca Middle School Order of Operations Vocabulary
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| term |
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| definition |
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| algebra |
mathematical language that uses variables and numbers |
| algebraic expression |
combination of variables, numbers, and at least one operation |
| evaluate |
to find the value of an expression by replacing variables with numbers |
| factor |
a number that divides a whole number with a remainder of zero |
| exponent |
in a power, the number of times the base is used as the factor |
| base (in a power) |
the number used as the factor |
| power |
a number that can be written using an exponent |
| order of operations |
rules to follow when more than one operation is used |
| Rule 2 of OOPs |
Do all powers before other operations |
| Rule 1 of OOps |
Do all operations within grouping symbols first. |
| Rule 3 of OOps |
Multiply and divide in order from left to right. |
| Rule 4 of OOps |
Add and subtract in order from left to right. |
| squared |
a number multiplied by itself is squared. |
| cubed |
the product in which a number is the factor three times |
| numerical expression |
a collection of numbers, operations, and grouping symbols |
| grouping symbols |
Characters that are used to change the order of operations in an expression or to make an expression clearer. Examples: ( ), [ ] |
| Left-to-Right Rule |
When operations have the same priority, you perform them from left to right. |
| P E M D A S |
The first letters of the words for operations Parentheses, Exponents, Multiply and Divide, Add and Subtract |
| priority |
coming before in order or in importance |
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