This is a preview. Log in through your library . Journal Information The Mathematics Teacher (MT), an official journal of the National Council of Teachers of Mathematics, is devoted to improving ...

After multiplication, it is time to learn certain divisibility rules to ease our calculations. The basic rules for divisibility by 2, 3, 5, 9, 11 are fairly well known. So now we are going to learn ...

It’s easy to tell if a given whole number is divisible by 2. Just check whether the last digit is even. There are also simple rules to determine whether a number is ...