Another amazing way to multiply any 2 digit number by 15. I especially love to use this trick when the given number is easily divisible by 2. Shortcut to multiply 2 digit number by 15 is the easiest to mentally find answer.

## Shortcut to multiply 2 digit number by 15

Now let us consider a few examples to understand better

Example 1: 12 x 15 = ?

Step 1:We find that half of the number is

12 /2 = 6

Step 2: Adding the given number and the result obtained in step 1

we get 12 + 6 = 18

Step 3:Multiplying the result obtained in step 2 by 10

we get 180

**Ans 12 x 15 = 180 **

Example 2:48 x 15 = ?

Step 1:We find that half of the number is

48 /2 = 24

Step 2: Adding the given number and the result obtained in step 1

we get 48 + 24 = 72

Step 3:Placing zero next to step 2

we get 720

**Ans 48 x 15 = 720 **

Step 1:We find that half of the number is

32/2 = 16

Step 2: Adding the given number and the result obtained in step 1

we get 32 + 16 = 48

Step 3:Placing zero next to step 2

we get 480

**Ans 32 x 15 = 480**

Step 1:We find that half of the number is

74/2 = 37

Step 2: Adding the given number and the result obtained in step 1

we get 74 + 37 = 111

Step 3:Placing zero next to step 2

we get 1110

**Ans 74 x 15 = 1110 **

Step 1:We find that half of the number is

56/2 = 28

Step 2: Adding the given number and the result obtained in step 1

we get 56 + 28 = 84

Step 3:Placing zero next to step 2

we get 840

**Ans 56 x 15 = 840**

Now you try applying this trick to multiply 25, 72 ,43,57 by 15 in secs