Pre-Algebra Math Flashcards Q2 Test(:
|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||...|