10 + 4 # add (returns 14)
10 - 4 # subtract (returns 6)
10 * 4 # multiply (returns 40)
10 ** 4 # exponent (returns 10000)
10 / 4 # divide (returns 2 because both types are 'int')
10 / float(4) # divide (returns 2.5)
5 % 4 # modulo (returns 1) - also known as the remainder
from __future__ import division
10 / 4 # true division (returns 2.5)
10 // 4 # floor division (returns 2)