friends, today i gonna show you how to multiply any 2 digit no by any 2git no in 10 to 15 secs
lets get started.....
Example: 12 x 13 = 156
Steps
1] multiply tens place digits vertically. ; here 2 x3= 6
2] multiply digits crosswise ; here 1x3 = 3 , 2x1 = 2
3] now add the products ; here 3 +2 = 5
4] now again multiply ones place digits vertically ; here 1x 1 = 1
now you got your answer = 156
33 x 55 = 1815
step 1 : 3x5 = 15; leave 5 carry 1
Step 2: 3x 5 = 15 , 3x5 = 15
Step 3 : add 15 + 15 = 30 ; add carried 1 also ; so, 31
Step 4 : carry 3 leave 1
Step 5 : 3x 5 + 3 = 18
Now we got our answer , 33x55 =1815
Source: My Experiment
Note : You can also find the product of algebraic expressions by this in the same way.
lets get started.....
Example: 12 x 13 = 156
Steps
1] multiply tens place digits vertically. ; here 2 x3= 6
2] multiply digits crosswise ; here 1x3 = 3 , 2x1 = 2
3] now add the products ; here 3 +2 = 5
4] now again multiply ones place digits vertically ; here 1x 1 = 1
now you got your answer = 156
33 x 55 = 1815
step 1 : 3x5 = 15; leave 5 carry 1
Step 2: 3x 5 = 15 , 3x5 = 15
Step 3 : add 15 + 15 = 30 ; add carried 1 also ; so, 31
Step 4 : carry 3 leave 1
Step 5 : 3x 5 + 3 = 18
Now we got our answer , 33x55 =1815
Source: My Experiment
Note : You can also find the product of algebraic expressions by this in the same way.