|
 edge | the line segment where 2 faces of a solid figure meet |
| equivalent | having the same value |
| fact family | a set of related addition/subtraction or multiplication/division equations that use the same numbers |
| inequality | a math sentence that contains a symbol showing that the terms on either side are unequal |
| mean | the number found by dividing the sum of a list of numbers by the number of addends (also called the average) |
| median | the middle number in a list of ordered numbers |
| mode | the number(s) that occurs most often in a list of data |
| obtuse | an angle that measures greater than 90 degrees |
| perimeter | the distance around a figure |
| quadrilateral | a polygon with 4 sides |
| right triangle | a triangle that has a 90 degree angle |
| vertex | a point where lines, rays, sides, or edges meet (also called a corner) |
| volume | the amount of space (in cubic units) that a solid figure can hold (length, times width, times height) |
| composite number | a whole number that has more than two factors |
| expanded notation | a way to write numbers that shows the value of each digit |
| least common multiple (LCM) | the smallest number (other than zero) that is a common multiple of two or more other numbers |
| plane | a flat surface that extends infinitely in all directions |
| prime number | a whole number that has exactly two factors: 1 and itself |
| range | the difference between the greatest and least numbers in a set of data |
| transformation | moving a figure to a new position by slide (translation), flip (reflection), or turn (rotation) |
| whole number | any of the counting numbers |
| translation | moving a figure without turning or flipping it (slide) |
| rotation | moving a figure by turning it around a fixed point (turn) |
| reflection | moving a figure to show its mirror image (flip) |
| circumference | the distance around a circle |
| congruent | figures with the same size and shape |
| similar | figures with the same shape, but not necessarily the same size |