Basic calculations with R

Question

The basic of R is that it works like a simple calculator. If you for example run this line of code:
> 1 + 1

The console will give as output:
2

You can do the same for multiplying or dividing for example. Here is a short overview of the operators
you can use for example:
+ adding,
- subtracting,
* multiplying
/ division

Answer 1

Privalage to a part of your calculation can be given with adding ( ... ) for example to subtract 4 by 1 and then multiply by 3 run the following code:
> (4 - 1) * 3

The console will give as output:
9

Note: Without brackets the console will first multiply 1 by 3 and then substract from 4.