Adding 2 matrix and Multiplying 2 matrix in python by using scipy/numpy

I am trying to use scipy and numpy to perform matrix addition and multiplication.

I have 2 matrix "a" and "b". my goal is to add "a" and "b" together and store the result into a matrix "c"

Also I want to multiply "a" and "b" and store into a matrix "d".

Are there any function perform like that in Scipy/Numpy?

Thanks a lot.