they aren't used in real life, not unless you need them in a situation were you would need to use them.
natural numbers are used in real life for counting, adding, subtracting and even for calculting money purposes
an English fifty pence piece
Roller Coasters
If you have to hang a picture or something on the wall.
There are uncountably many.
multiples can be used to know accumulation of products... example: you get 24 bulbs in a box, but you have 144 light fixtures to support. how many multiples of bulbs must you buy ... 6x24=144. answer 6
Buoyancy is used for many life examples, submarines, swimmers would like to know about it, and the army would use it. Those are some life examples that of real life that buoyancy would be used! Hope this helps!
Proportions are used in real life to determine prices of things.
Believe it or not, school is a real life situation. If you are using it in school it real life for you.
=Probability is used in many ways.==For example:==* gambling==*bettting odds==and anywhere in the world!=
Let's say you have 75 apples. You store them equally into 25 boxes. How many apples are in each box? The answer is 75÷25 which is 3. That's how division is used in real life.
If you are in school and are studying trig then you are using trig in real life.
Many roots are eaten - for example, potatoes, tapioca, carrots, onions.
Real useing you house.
Yes, they are used.
they are not trust me