add numbers

Random numbers

Square numbers

the % symbol (remainder of a number)

Division

in interactive mode run the following to add the number 2 and 3 and then add the results to 1 (use underscore for the last printed expression)

>>> **3 + 2**

5

>>> **_ + 1**

6

from random import randint

hiddennum = (randint(0,10))

print hiddennum

5 ** 2 # is 5 squared so 25

the % symbol (remainder of a number)

% remainder from a division

math is calculated from left to right, unless you put in parentheses

>>> 1 + 2 * 3

7

>>> (1 + 2) * 3

9

division

division

Python 2.6.6 (r266:84292, Jul 23 2015, 15:22:56)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> 10/3

3

>>> from __future__ import division

>>> 10/3

3.3333333333333335

>>>

or

>>> 17 / 3

5

>>> 17 / 3.0

5.666666666666667