Why was I not taught this in school? http://sfglobe.com/2015/12/04/multiplication-using-lines-has-some-really-great-benefits/?src=bottomxpromo&ro=12&eid=34300_a&pid=34300&k=ip2a4g4t2
Here's one with the 11 times table... 11 x 42 = 462 (simply add 4 and 2 together and place the sum in between the two numbers) 11 x 36 = 396 11 x 81 = 891 If your sum is larger than 10, the second digit of the sum goes in the middle and the first digit of your new sum (which will be in the hundreds) will be "one number higher" than the previous two digit number. (for instance, in 11 x 47, the answer is 517... 5 is one more than 4, 1 is the second digit of 4 +7, and 7 is there because the third number stays the same regardless) 11 x 47 = 517 11 x 65 = 715 11 x 88 = 968 Yes, this breaks down when you surpass 1000... But it's still neat.
