00:01
Hello, so here sorting our given numbers.
00:03
So a rational number, we know, a rational number is basically, if we can write it as a fraction, so we can write it in the form a over b, where a and b are both integers, or 1 .2 repeating, we know that any repeating decimal is, we can write as a fraction, so 1 .2 repeating is rational.
00:18
3 .456, well, if we have a decimal, if the decimal ever ends, we can just write whatever, you know, the decimal part is, the whatever number that is, over whatever place value we're in.
00:28
So, yes, if we ever have a term name, decimal, that is going to be rational.
00:31
So 3 .456 is rational.
00:34
Negative 6 .11s, well, that's a fraction.
00:36
So a fraction is definitely rational.
00:37
Negative 44, that's over 1.
00:40
So that's an integer, which is also going to be rational.
00:42
Square root of 81, that's just 9, which is rational.
00:46
Negative 19, again, over 1, and 0, while 0 is 0 over 1, so 0 would be considered rational as well.
00:53
For the integers, well, we can see that every integer here is also going to be rational.
01:00
But again, an integer must be over 1.
01:02
So the integers are negative 19, 0, 3, square of 81, that's just 9.
01:07
So square of 81 is an integer.
01:09
And negative 44, again, over 1, that is an integer as well.
01:13
Now, a whole number, well, a whole number is typically defined as well.
01:16
So the natural numbers are the counting numbers.
01:18
The whole numbers, basically the same thing, just add zero to it.
01:21
So 0 is a whole number, 3 and square of 81.
01:25
Again, square of 81, it's just 9...