Definitions for math,

Mean - Add them all up and divide by how many Numbers are there

Median - The middle number of the arranged data set.

Mode- Number that is repeated the most

Outlier- Much smaller or larger than the others or the one that stands out the most

Variable - A letter that represents an unknown number

Translation- A slide across a line

Rotation- A turn about a fixed point called the center of rotation

Reflection - A mirror image

Prime Numbers

Prime Numbers.
Factor is a number that goes into another number exactly with NO decimals or remainders.
Example : 2 is a factor of 6
2 goes into 6 exactly 3 times
2 is NOT a factor of5because 2goes into 5, 2.5 times

Find the factors of 4, 12, 16, 17, 24, 41 and 96. 4- 1, 2, 4 12- 1, 2, 3, 4, 6, 12 16- 1, 2, 4, 8, 16 17- 1, 17 24- 1, 2, 3, 4, 6, 8, 12, 24 41- 1, 41 96- 1, 2, 3, 4, 6, 8, 12, 24, 32, 48, 96 Prime numbers have only 2 factors ( one and itself ) Composite numbers- numbers with more than 2 factors.

Determine weather each number is prime or composite.
1- Special 9- 1, 3, 9 composite 13- 1, 13 prime 28- 1, 2, 16, 28 composite 31- 1, 31 prime 41- 1,41 prime 51- 1, 3, 17, 51 composite A multiple, is the opposite of factor. Example : 10 is a multiple of 2 and 5

L.C.M. is lowest common multiple
3- 3,6 9, 12, 15, 18, 21, 24, 27, 30 ... 4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 ... 3 and 4 both have 12 in common. 3 and 4 both have 24 in common. 12 is the lowest common multiple.
HOMEWORK

Find all the factors of 10, 18, 37

Determine which are prime and composite.
2, 11, 17, 27

Find the L.C.M. of
- 2 & 4
- 3 & 5
- 6 & 7