Review of 1.1-1.3

​How do you Represent a repeating decimal as a fraction? Explain

By Nick Peters

​Let the repeating #'s Equal X

Multiply by a factor of 10
That puts the repeating #s
in the ones place

​.666666666666...

Subtract by x to get rid of the
Repeating decimal

Solve then simplify

​.252525252525...

​.661661661661...

Square Roots that are rational vs Irrational

Square Roots that are rational have to be perfect Squares: List me some

Square Roots that are rational vs Irrational

Square Roots that are rational have to be perfect Squares: List me some

Square Roots without using a calulator

Prime Factor the number. If all exponents are even numbers its a perfect square. If they are not, it is not a perfect square.

Cube Roots that are rational vs Irrational

Cube Roots that are rational have to be perfect Squares: List me some

Cube Roots without using a calulator

Prime Factor the number. If all exponents are divisible by three then it is a perfect cube. If they are not, then it is not a perfect cube.

Cube Roots that are rational vs Irrational

Cube Roots that are irrational are square roots that....________________ list me some