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13 Cards in this Set

  • Front
  • Back

Mean

The average.


The arithmetic mean.
The central tendency.

Sum all the numbers and then divide by the number of numbers to get the Mean.

Median

The middle number.




Order numbers from least to greatest and find the middle number.




If there's an even number then take the mean of the two middle numbers.

Mode




The number that shows up the most in the data.









Long division

Work left to right

Multiplying decimals

Multiply to make them whole numbers. Count the number of decimal points that the two numbers were moved by. Add this number of decimal points back to get the final answer.

Proper fraction

Under 1 in total.


1/2, 3/4, 7/11, 3/9 etc.

Improper fraction

Over 1 in total.


7/5, 6/4, 9/5 etc.

Absolute value


|x|

The distance from x to zero.
Absolute value is always positive.
It's just the positive value of the number.


|5| = 5


|-5| = 5

Mixed Number

Whole number and fraction

Converting decimal to fraction

Find the highest number place, re-write then simplify if possible

First twelve prime numbers

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37

Multiplying fractions

Multiply the numerators, then multiply the denominators. Simplify if possible

Multiplying a fraction by a whole number

Multiply the numerator, keep the denominator the same.