### Rational Numbers

Monday, October 19, 2009
As you all know, our next unit is rational numbers.

Rational Numbers are numbers that can be expressed as a fraction. The denominator cannot be equal to zero.

Natural Numbers are numbers we use every day
example: 1, 2, 3, 4, 5, 6, 7, 8, 9
They are also called counting numbers.

Whole numbers are 0 and the natural numbers.

Integers are whole numbers and their opposites.
-3, -2, -1, 0, 1, 2, 3

As said earlier, rational numbers are numbers that can be expressed in fraction form. Irrational numbers cannot be expressed in fraction form.
Like PI and the square root of 3

Then there are real numbers. Real numbers are numbers we normally use, including rational and irrational numbers, fractions, decimals, and integers.

Just because I was curious, I searched up what imaginary numbers are. To put it simply, its a number that when squared gives a negative result.

Well that's all. Please be a good person and comment! But I won't hold it against you if you don't. :)

linda 9-05 said...

NICE POST! Your content is great and your post is really colourful! If you want to make it better, you could always add some links of a video. Great job, Kristin!

angela905 said...

Good post! Great use of colours and bolding words. Nice explanations too. Anyways, good job :D

Lissa 9-05 said...

GREAT POST !(: I love your colours and thanks for explaining so well.