After watching the lesson, try the mini assignment at the end.
I forget to mention in the video that you can also compare strings with relational operators >, <, <=, >=,!=, ==
'apple' < 'banana' #True
'cat' == 'cat' #True
4 < 2 #False
So strings are compared alphabetically and integers are compared numerically.
It can be very dangerous to compare floating point number with equality (==). Because sometimes 3.0 != 3.000000001. So == should not be used for floating point numbers.
In the interpreter commands like
3+6
will instantly give you the result. However, that line in an actual program would do nothing as you are not saving the result to a variable. So in a program it could be:
answer=3+6 #the sum is stored in variable "answer"
and if you want the variable to be printed:
print(answer)