## Addition and Subtraction Maths Tricks

Determine the value of
3+8+6+2+17+3+5+1+2+4
The easiest way of calculating it is rearranging the order in this way:
3+8+6+2+17+3+5+1+2+43+17+8+2+6+4+3+5+2+1  = 20+10+10+10+1
=51

Multiplication
Multiplying by 6

If you multiply 6 by an even number, the answer will end with the same digit. The number in the ten's place will be half of the number in the one's place.
Example:
6 x 4 = 24.
6 x 6= 36
6 x 8= 48
6 x 12 = 72

### multiply two-digit numbers by 11

This is a quick way to multiply two-digit numbers by 11 in your head.
1. Separate the two digits in your mind.
2. Add the two digits together.
3. Place the number from Step 2 between the two digits. If the number from Step 2 is greater than 9, put the one's digit in the space and carry the ten's digit.
Examples: 72 x 11 = 792.

57 x 11 = 5 _ 7, but 5 + 7 = 12, so put 2 in the space and add the 1 to the 5 to get 627

Vedic maths blessed us with the easiest method to do complex multiplications quickly. This method can be quickly explained with an example:

Multiply a Number by 5

Even Number

3464 x 5 = ?
step1.
divide it with 2
3464/2 = 1732
step2.

Odd Number
3777 x 5 = ?
step1.
odd number - 1 (3777-1)= 3776
step2. divide by 2
3776/2 = 1888

step3. as it is an odd number so instead of 0 we will put 5 in the end