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 All About ME! We are a group of 7th graders from Colorado who want to practice our writing and communication skills. We are excited to expand the walls of our classroom and collaborate with other classes! Please leave us comments and your blog URL, so we can respond back to you!
 by Daya teacher: Mrs. Lubich

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Math These "geniuses" show they aren't completely empty-minded, but, there is an easy way of proving them wrong. If you try adding 7 together 13 times using their method your answer would be 104. That proves that this method doesn't work. Another pair of numbers this does work for is 3 times 18. As shown in the videos, 6) 36 (15. 6 doesn't go into 3, but it goes into 6 once(that is where you get the 1 in 15). The 6 in 36 minus 6 is 0. You bring the 3 from 36 down it is 30. 6 goes into 30, 5 times(that's where the 5 in 15 comes from), so 36 divided by 6 is 15.

Article posted September 22, 2011 at 08:34 PM • comment • Reads 1604 • Return to Blog List