Start from the number 6 and add 6 each time.
Method 2: It is possible to remember multiples of 6 in order. Method 1: When you want to calculate an exercise with a number that is multiple of 6, you can calculate the same exercise, but with 5 instead of 6 and add the number that appears in the exercise. How do you easily calculate multiples of 6? In multiples of 6 we count sixes, that is, groups of 6.