In the last post we have done the following-
"Easiest way to multiply 34 by 36 is- first multiply 6 by 4 it is 24 . Then increase 3 by 1 it is 4 . Now multiply 3 by 4 it is 12. Combining  both it is 1224.The required result.

similarly any two digit numbers having tens digits equal and sum of unit digits =10 their multiplication will be as above.

First multiply unit digits. and write the result  then increase tens digit by 1 and multiply both and write combining both we get required result."

 Now suppose the numbers are in reverse order i.e 43 x 63  or unit digits are equal and sum of tens digit is 10.
Then we have to multiply the unit digit  and add unit digit in multiplication of tens.
Thus we get required result 3 x3=09 and 4 x6= 24+3=27 combining both 2709 is the required result.
Do the following  and confirm the result-
67 x 47, 82x22, 74x34 , 91 x11