Incrementation by Four

STEP 1

Just count the numbers on the cycle in both the even cycle (0-4-8-2-6...) and in the odd cycle (1-5-9-3-7...). Know this by heart before you do step 2.

STEP 2

Do first as beginner, then migrate to slow, then medium, and then fast. Keep up in counting along with the graphic progression.
Remember, a 0 means any number that ends in a zero, like 10, or 40 , or 2430. Do both the EVEN and ODD incrementations.

BEGINNER

Even	Odd

SLOW

Even	Odd

MEDIUM

Even	Odd

FAST

Even	Odd