Numbers (Math)
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15 terms
Terms | Definitions |
|---|---|
 Natural Numbers | 1 and up: N |
| Whole numbers | 0 and up: W |
| Integers | whole numbers & opposites: J or Z |
| Rational Numbers | any number that can be written as a fraction: Q |
| Irrational Numbers | non-repeating, non-terminating decimal ex.) pi: I |
| Real Numbers | All rational and irrational numbers |
| opposites | two numbers that are the same distance from 0 |
| absolute value | distance from 0 on a number line |
| Addition of Rational numbers | + plus + = + - plus - = - + plus - = sign of larger number |
| how do you prove addition and subtraction? | on a number line |
| matrix | rectangular arrangement of numbers into rows and columns 3x2 matrix- 3 rows, 2 columns |
| Subtraction of real numbers | add and subtraction or opposites Definition of subtraction- to add the opposite |
| -a | opposite of a |
| -2 squared | -2 x -2=4 when there are no parentheses its like 2 squared, always negative |
| (-2) to the 3rd power | -2 x -2 x -2= -8 with parentheses you do the whole thing in parentheses |
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