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Reprinted from 198100725 at 11:55 on April 27, 2010 Reading (loading. ..) Comments (1) Category: Pearl Screenshot Yu
1. ten by ten:
formulas: the head by head, tail plus tail,pandora online, tail by tail.
Example: 12 × 14 =?
solution: 1 × 1 = 1
2 +4 = 6
2 × 4 = 8
12 × 14 = 168
Note: a bit multiply, not use the 0 digit placeholder.

2. head the same, complementary tail (tail add up to 10):
formulas: a first add 1 to the head by head, tail by tail.
Example: 23 × 27 =?
Solution: 2 +1 = 3
2 × 3 = 6
3 × 7 = 21
23 × 27 = 621
Note: a bit multiply, not use the 0 digit placeholder.

3. complementary first multiplier, the same as the other multiplier:
formulas: a first add 1 to the head by head,pandora bracelets, tail by tail.
Example: 37 × 44 =?
solution: 3 +1 = 4
4 × 4 = 16
7 × 4 = 28
; 37 × 44 = 1628
Note: a bit multiply, not use the 0 digit placeholder.

4. dozens of dozens of one by one:
formulas: head by head, head plus head,pandora uk, tail by tail.
Example: 21 × 41 =?
solutions: 2 × 4 = 8
2 +4 = 6
1 × 1 = 1
; 21 × 41 = 861

5.11 by any number:
formulas: sum of fixed fate, and the middle of the drop-down.
Example: 11 × 23125 =?
Solution: 2 +3 = 5
3 +1 = 4
1 +2 = 3
; 2 +5 = 7
2 and 5, respectively,pandora jewelry, in the sum of
11 × 23125 = 254375
Note: and over ten to get into one.

6. dozen by any number:
formulas: Second Take is not the first fate of several trends, the first digit multiplied by the factor behind the second factor of each number,pandora charm, plus the next digit,pandora bracelets sale, again missing.
Example: 13 × 326 =?
solution: 13 bits is 3
3 × 3 +2 = 11
3 × 2 +6 = 12
; 3 × 6 = 18
13 × 326 = 4238
Note: and over ten to get into one.


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