Any number of two numbers multiplied by 11? Does not have to fear to memorize. Let's see how easy it can be. The trick is to put the sum of them in the middle of the numbers, . Do not understand? Okay, look at the example -
36 x 11 = 396 (3 + 6 = 9)
Again 34x11 = 374 (3 + 4 =7, This 7 have to placed in middle of 34= 374
Again, 72 X 11 = 792
When the sum of two numbers is greater than 9, then the sum on the left has to be added 1. For example, 98 x 11 = 1078 (9 + 8 = 17; 9 plus so 1 is added with the left digit and seven between 10 and 8 Is)
Thus, 78x11 = 7 (7 + 8) 8 = 7 (15) 8 = (7 + 1) 58 = 858
Again, 56 X 11 = 616
But if the number of two digits is not three or more than the number of digits? In that case, the rule is that you have to go through the left side to the right of the other numbers except for the number of sides. It is basically a common form of the previous two digits.
Let's show you one of the following (436 X 11)
I have said beforehand to start from right, then first write 6 and then add 3 to 6 (next pair) and then write it. Then the 69 is. Then add the next pair 3 and 4 and then sit again. How much is 697. Then there are no more pairs, so put the last digit 4 (6974), the diameter is multiplied. So funny.
Okay see a few more examples for more clearness.
3254 X 11 = 3 (3 + 2) (2 + 5) (5 + 4) 4 = 35794
2331 x 11 = 2 (2 + 3) (3 + 1) (1 + 4) (4 + 5) 5 = 254595
When the sum of two middle wings is greater than 9, then add 1 with the left digit. Such as:
43687 x 11 = 4 (4 + 3) (3 + 6) (6 + 8) (8 + 7) 7
= 4 (7) (9) (14) (15) 7
= 4 (7) (9) (14 + 1) (5) 7
= 4 (7) (9) (15) (5) 7
= 4 (7) (9 + 1) (5) (5) 7
= 4 (7) (10) (5) (5) 7
= 4 (7 + 1) (0) (5) (5) 7
= 480557
The number 11 has more fun, as in this way a number can be multiplied by 22,33,44. I discus about this later.
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