Multiplication of Two digit numbers Shortcut tricks

Multiplication of two digit numbers
Traditionally Multiplication of Two digit numbers are very time consuming process. But you can calculate it very easily using shortcut tricks. Main thing is that you just follow the steps are given. If you learn it mentally then you perform it very fast and quick on two digit numbers.



Multiplication of Two digit numbers:
13 x 13 = ?
The result of multiplication of two digit number is 13x13 = 169.

Step 1: Multiply 3x3 = 9 then,
Step 2: Do Cross-multiplication (1x3) = 3 and (1x3) = 3.
Step 3: Add both the result (1x3 + 1x3) = 6 and write down to the left of 9 (result of step 1).
Step 4: Multiply left hand side numbers (1x1) = 1 and write down to the left of 6 (result of step 3).
Finally the result we get 169. (Try to calculate all four steps in mind.)



Another multiplication of Two digit numbers:
17 x 19 = ?
The result of multiplication of two digit number is 17x19 = 323.

Step 1: Multiply 7x9 = 63 (note down 3 and carry over 6).
Step 2: (1x9 + 1x7 + 6 (add carry)) = 22 (note down 2 and carry over 2 for next step).
Step 3: (1x1 + 2) = 3, note it down.
And finally the result we get 323. (Try to calculate all three steps in mind.)



Another multiplication of Two digit numbers
38 x 27 = ?
The result of multiplication of two digit number is 38 x 27 = 1026

Step 1: Multiply (7x8) = 56 note down 6 and carry 5 then,
Step 2: Do Cross-multiplication (7x3) = 21 and (2x8) = 16.
Step 3: Add both the result with carry (21 + 16 + 6) = 42 and write down 2 carry 4.
Step 4: Multiply left hand side numbers (2x3) = 6 and add carry (6 + 4) write down to the left of 2
Finally the result we get 1026. (Try to calculate all four steps in mind.)



Another multiplication of Two digit numbers

59 x 42 = ?
The result of multiplication of two digit number is 59 x 42 = 2478

Step 1: Multiply (2x9) = 18 note down 8 and carry 1 then,
Step 2: Do Cross-multiplication (2x5) = 10 and (4x9) = 36.
Step 3: Add both the result with carry (10 + 36 + 1) = 47 and write down 7 carry 4.
Step 4: Multiply left hand side numbers (4x5) = 20 and add carry (20 + 4) write down to the left of 7
Finally the result we get 2478. (Try to calculate all four steps in mind.)


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