| A | B |
|---|
| Absolute Value | The distance a number is from zero on the number line |
| Approximation | A value that is very close but not exactly equal to another number; an estimate |
| Area | The number of square units needed to cover a flat space without overlapping |
| Circumference | The distance around a circle |
| Consecutive | In order with no numbers skipped |
| Denominator | The bottom number in a fraction |
| Difference | How much is left after you subtract |
| Digit | Any of the numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9 in the decimal system) used to write numbers |
| Evaluate | To find the value of a mathematical expression |
| Horizontal | Going left and right |
| Improper Fraction | A fraction with a numerator greater than or equal to its denominator |
| Integers | The set of positive and negative whole numbers and 0 |
| Inverse Operations | Operations that give oposite results, or undo each other |
| Irrational Numbers | Non-terminating, non-repeating decimals that cannot be written as a fraction |
| Like Terms | Terms in an expression that have the same variables with the same exponents |
| Mixed Number | A number with a whole number part and a fractional part |
| Numerator | The top number in a fraction |
| Perfect Square | The product of an integer times itself |
| Perimeter | The measure of the distance around the outside shape of a figure |
| Plane | A flat surface made up of a continuous and unending set of points, going on forever in all directions |
| Point | An exact place in space |
| Prime Number | A whole number with value greater than one, whose only factors are one and itself |
| Quotient | The result of dividing one number by another |
| Radius | The distance or segment from the center to any point of a circle |
| Ratio | A comparison of two numbers, often written as a fraction |
| Rational Number | A number that can be written as the ratio of two non-zero integers |
| Real Numbers | The combined set of all rational and irrational numbers |
| Reciprocal | The number by which a given number can be multiplied to get one |
| Simplify | To rewrite an expression by combining like terms or using the order of operations; or to rewrite a fraction by dividing both the numerator and denominator by a common factor |
| Sum | The answer to an addition problem |
| Term | Part of an expression separated by addition or subtraction |
| Vertical | Up and down |
| Volume | The number of unit cubes needed to fill up a 3-dimensional space |
| Whole Number | The numbers 0, 1, 2, 3, 4 and so on |
