Zero shows that there is no amount. ... Example 6 6 = 0 (the difference between six and six is zero)| www.mathsisfun.com
A Rational Number can be made by dividing an integer by an integer. (An integer itself has no fractional part.).| Math is Fun
Here we look at whether a square root is irrational ... A Rational Number can be written as a Ratio, or fraction.| Math is Fun
Whole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, ... (and so on) ... No Fractions ... (But numbers like , 1.1 and 5 are not whole numbers.)| www.mathsisfun.com
Imagine we want to measure the exact diagonal of a square tile. No matter how hard we try, we won't get it as a neat fraction.| Math is Fun
First learn about Squares, then Square Roots are easy. ... Squared is often written as a little 2 like this ... This says 4 Squared equals 16 (the little 2 says the number appears| www.mathsisfun.com
Draw a circle with a diameter (all the way across the circle) of 1 ... Then the circumference (all the way around the circle) is 3.14159265... a number known as Pi| www.mathsisfun.com