| A | B |
|---|
| product | the answer to a multiplication problem |
| factor | one of the parts of a multiplication problem |
| sum | the answer to an addition problem |
| difference | the answer to a subtraction problem |
| quotient | the answer to a division problem |
| cross products | the result of multiplying the numbers that are across from each other in a proportion |
| means and extremes | another word for cross products |
| area | the number of square units needed to cover a figure |
| perimeter | the distance around a figure |
| commutative property | you can change the order of a multiplication or addition problem without changing the answer |
| associative property | you can change the grouping (parentheses) of an addition or multiplication problem without changing the answer |
| identity property | when you add 0 to a number (or multiply by 1) you get the number you started with |
| zero property | zero times any number is always zero |
| expression | a mathematical statement without an equal sign |
| equation | a mathematical statement with an equal sign |
| reciprocals | two numbers that give you 1 when you multiply them together (the flip of a number) |
| absolute value | the distance between a number and zero on the number line |
| term | one quantity in an algebraic expression or equation (separated by + or - signs) |
| coefficient | the number in front of a variable, showing multiplication |
| constant | a plain old number in an algebraic expression or equation |
| variable | a letter used to represent a known or unknown number |
| inequality | a statement that two expressions are not equal (using >, <, ≥, or ≤) |
| proportion | a statement that two ratios are equal |
| dimensions | the side measurements of a 2- or 3-dimensional shape |
| vertices | the corners of a 2- or 3-dimensional shape |
