Too many wrong enumeration , and reserve education
 

! ,PULSERA BLANCE CON ESPANA!
1. ten by ten:
formulas: the brain at brain, tail plus tail, tail along tail.
Example: 12 × 14 =?
solution: 1 × 1 = 1
2 +4 = 6
2 × 4 = 8
12 × 14 = 168
Note: a bit multiply,PULSERA AZUL CON BANDERA, not use the 0 digit placeholder.
2. head the same,Equilibrio Xtreme, complementary tail (tail add up to 10):
formulas: a first multiplication 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,PULSERA CAMUFLAJE CON LOGO XB, the same for the additional multiplier:
formulas: a first add 1 to the head by head, tail by tail.
Example: 37 × 44 =?
solution: 3 +1 = 4
4 × 4 = 16
7 × 4 = 28
; 37 × 44 = 1628
Note: a morsel amplify, not use the 0 digit placeholder.
4. dozens of dozens of one by one:
formulas: head by head, head plus head, 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: amount of nailed destiny, and the medium of the drop-down.
Example: 11 × 23125 =?
Solution: 2 +3 = 5
3 +1 = 4
1 +2 = 3
; 2 +5 = 7
2 and 5,PULSERA NEGRA CON ARGENTINA, respectively, in the sum of
11 × 23125 = 254375
Note: and over ten to get into one.
6. dozen by whichever number:
formulas: the first is not the second multiplier falling trend, the first digit multiplied by the ingredient back the second factor of each digit,PULSERA BLANCA CON LOGO XB, plus the next numeral, afresh lacking.
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 obtain into 1.