here is a cool math trick if you want to multiply two numbers by 11 for example 12 x 11 you add the first and second number of the twelve which is 3 and put it between the first and the second number of the 12 the answer will be 132
here is a cool math trick if you want to multiply two numbers by 11 for example 12 x 11 you add the first and second number of the twelve which is 3 and put it between the first and the second number of the 12 the answer will be 132