Math

Brains Grow and Change


Brains Grow and Change from Citizen Film on Vimeo.

Mistakes are Powerful


Mistakes are Powerful from Citizen Film on Vimeo.

Believe in Yourself


Believe in Yourself from Citizen Film on Vimeo.

Speed is not Important


Speed is not Important from Citizen Film on Vimeo.

Think About Math Visually


Our Brains Think about Math Visually from Citizen Film on Vimeo.

Divisibility Rules

1: All whole numbers are multiples of 1
2: The last digit is 2, 4, 6, 8, 0
3: The digits add up to a multiple of 3
4: The last 2 digits are a multiple of 4
5: Last digit is either 5 or 0
6: Divisible by 2 and 3
7: It is a bit bizarre. Use google. You may get confused
8: Last 3 digits are divisible by 8
9: The digits add up to a multiple of 9
10: So obvious – ends in 0

Order of Operations

Factors

Exponents

Exponents and Square Roots