Pre-Algebra Math Flashcards Q2 Test(:
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15 terms
Terms | Definitions |
|---|---|
 Adding Integers | The sum of an integer and its opposite is zero. |
| Adding Integers (same sign) | The sum of 2 positive integers is positive and the sum of 2 negative integers is negative |
| Adding Integers (different signs) | To add integers with different signs find the difference of their absolute value. |
| Adding Integers (different signs cont.) | The sum has the sign of the integer with the greater absolute value. |
| Subtracting Integers | To subtract an integer is to add its opposite. |
| Keep, Change, Change | KEEP: the 1st number the same. CHANGE: the sign to its opposite. CHANGE: the 2nd number to its opposite. |
| Multiplying Integers | Same sign = positive Different signs = negative Zero and any integer = zero |
| Dividing Integers | Same sign = positive Different sign = negative By zero and any integer = undiffined |
| Average | To find the average . Use order of operations. .(The fraction bar acts as a grouping symbol.) . Use the multiplying/dividing rules to find your answer. |
| Coordinate Plane | Is formed by intersections of 2 number lines (x,y axis) |
| Y axis | Vertical number line. |
| X axis | horizontal number line. |
| Quadrants | The 4 areas divided by the X and Y axis. |
| Commutative Property of Addition/ Multiplication | changing the order of the integers. |
| Associative Property of Addition/ Multiplication | ... |
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