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Multiplication      Chip Tricks, Card Tricks, Pool Trick Shots, Penspinning Forum Index » 21ace Lounge View previous topic View next topic Multiplication Author Message Eric Site Admin Joined: 01 Dec 2003 Posts: 2486 Location: California Multiplication Today I saw a cool video on yahoo that lets a person multiply up to 99*99 easily. They did 73*24 in the video. For example, let's say we want to multiply 89*67: Code: A. Draw the Squares:  ___________ |     |     | |  /  |  /  | |_____|_____| |     |     | |  /  |  /  | |_____|_____| B. Place the Numbers:    8     9  ___________ |     |     | |  /  |  /  | 6 |_____|_____| |     |     | |  /  |  /  | 7 |_____|_____| C. First Square = 8 times 6 is 48 or 4/8:    8     9  ___________ |4    |     | |  /  |  /  | 6 |____8|_____| |     |     | |  /  |  /  | 7 |_____|_____| D. Second Square = 9 times 6 is 54 or 5/4:    8     9  ___________ |4    |5    | |  /  |  /  | 6 |____8|____4| |     |     | |  /  |  /  | 7 |_____|_____| E. Third Square = 8 times 7 is 56 or 5/6:    8     9  ___________ |4    |5    | |  /  |  /  | 6 |____8|____4| |5    |     | |  /  |  /  | 7 |____6|_____| F. Fourth Square = 9 times 7 is 63 or 6/3:    8     9  ___________ |4    |5    | |  /  |  /  | 6 |____8|____4| |5    |6    | |  /  |  /  | 7 |____6|____3| G. Get Fourth Digit from bottom right = 3 so we write 3:    8     9  ___________ |4    |5    | |  /  |  /  | 6 |____8|____4| |5    |6    | |  /  |  /  | 7 |____6|____3|          3 H. Get Third Digit from second to bottom = 6+6+4 or 16 so we write the 6 and carry the 1:    8     9  ___________ |4    |5    | |  /  |  /  | 6 |____8|____4| |5    |6    | |  /  |  /  | 7 |____6|____3|    6     3 I. Get Second Digit from second to top = 1+5+8+5 or 19 so we write the 9 and carry the 1:      8     9    ___________   |4    |5    |   |  /  |  /  | 6   |____8|____4|   |5    |6    | 9 |  /  |  /  | 7   |____6|____3|      6     3 J. Get First Digit from top = 1+4 so we write 5:      8     9    ___________   |4    |5    | 5 |  /  |  /  | 6   |____8|____4|   |5    |6    | 9 |  /  |  /  | 7   |____6|____3|      6     3 K. Four Digits are 5963 which is the answer. _________________ Check out my video for the 9th chip trick contest: http://www.21ace.com/video-pictures/albums/userpics/10002/Eric-9th-Chip-Contest.wmv Sun Jul 15, 2007 3:17 pm SleepWalkers Straight Flush Joined: 10 Sep 2004 Posts: 750 Location: FL Is this just supposed to be a fun way to do it, or a practical way? _________________ 10th entry: http://youtube.com/watch?v=rFpdRQxISj4 21ace youtube group: http://www.youtube.com/group/21ace Sun Jul 15, 2007 4:57 pm loka2 Pair Joined: 21 Jan 2007 Posts: 8 It is so much easier to do this in the head , all you have to know is the times table from 0*0 to 9*9 and keep track of some some numbers. 89*67 9*7=63 9*6(*10)=540 8(*10)*7=560 8(*10)*6(*10)=4800 63+540+560+4800=5963 And I agree with SleepWalkers, is this a smart and quick way or just fun Mon Jul 16, 2007 12:06 pm Display posts from previous:  All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year  Oldest FirstNewest First     Chip Tricks, Card Tricks, Pool Trick Shots, Penspinning Forum Index » 21ace Lounge All times are GMT - 7 Hours Page 1 of 1   Jump to:  Select a forum Tricks And Flourishes----------------Poker Chip Tricks plus Coin TricksCard Tricks - Magic and FlourishesPen Spinning ericyow.com Pool Forums----------------ericyow.com plus forum newsAsk Yow!Your Pool Videos and Other VideosGeneral chit chatShot Diagrams Poker Supplies----------------All Your Poker Supplies Poker, Games and Casinos----------------Poker and Gaming General----------------21ace Information and Suggestions21ace Lounge You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2005 phpBB Group Design by Freestyle XL / Flowers Online.

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