Did you find answer for 16 x 14 ?


Base for 16 x 14 is 10
               +6   +4

Unit's place digit = 6x4 = 24
10's place digit  = 16+4 = 20o

result = 20 / 24  = 20+2 / 4  ( 2 carry forward )
          = 224

Base method is very useful in squaring number.

Now what is the result of 23 x 22 ?


Here what is the base? 20

23 x 22
 +3    +2

unit's place digit = 3x2 = 6
10s place digit = 23 + 2 = 25
result = 25 / 2 = 252

Is that correct? No

Please note in this examples 20 is the base. So you have to multiply 10's digit with 2

Correct method :
10's place digit = 23 + 2 = 25 x 2  ( As 20 is base, multiply with 2 )

result = 50 / 6 = 506

Now you tell me if the base is 30, multiply with ?

if the base is 30, multiply 10's digt  with 3

if the base is 40, multiply 10's digt with 4