THE FIRST BY THE FIRST AND THE LAST BY THE LAST

                              In the special method  we learn the formula BY ONE MORE THAN THE ONE BEFORE 

Products like 43 × 47

 are easy to find because the first figures are the same and the last figures sum to 10.
Similarly products like 27 × 87 are also easy to find because the last figures are the same and the first figures add up to 10.
This comes under the Vedic formula The First by the First and the Last by the Last.

27 × 87 = 23/49.
 The conditions are satisfied here as 2 + 8 = 10 and both numbers end in 7.
 So we multiply the first figure of each number together and add the last figure:
2 × 8 = 16, 16 + 7 = 23 which is the first part of the answer.
Multiplying the last figures together: 7×7 = 49: which is the last part of the answer.
69 × 49 = 3381. in which 33 = 6×4 + 9, and 81 = 9×9. 

                        Practice  Multiply the following by this method

 a 38 × 78    b 26 × 86     c 91 × 11     d 59 × 59
 e 63 × 43    f 24 × 84      g 88 × 28     h 29 × 89     i 97 × 17    j 64 × 44