multiply by nine tip

coolest math trip ever! palms down, lay out your fingers with the fingers all spread out on a table. your left pinky is 1, your left ring finger is 2, left middle finger is 3, etc. ok, so if you want to multiply 4 by 9, what you do is put down finger #4 which would be your left index finger. now you see that you have 3 fingers standing to the left of the new gap. and you have 6 fingers standing to the right of the new gap. 3-6--see? 4x 9=36! tada! it's like mathemagic! this works up to 9x9.