FRACTIONS:
+ & - Use common denominators to solve
X Make everything a fraction, X numerators, X denominators, simplify. You can cross cancel when multiplying
÷ Make everything a fraction, keep the first fraction, change ÷ to X and use the reciprocal of the second fraction, then X
Simplify Everything!
DECIMALS:
+ & - Line up the decimals, drop the decimal into the answer
X Ignore the decimals, X, count the space after the decimal and place your decimal
÷ Get rid of decimals in the divisor by moving it to the ->, do the same to the dividend, float the decimal up, ÷
STATISTICS:
Mean: Average, + the numbers (hit = on the calc), ÷ by the amount of values
Median: Middle, put numbers in order, count to the m iddle, average if there are 2 left
Mode: Most, the value that appears the m ost
Range: The largest number subtract the smallest
-Miss K :)
No comments:
Post a Comment