MATH TRICK - MULTIPLYING BY 4

To multiply any number by 4 quickly, you can use this simple trick:

Multiplying by 4

1. Double the Number: First, multiply the number by 2.

2. Double Again: Multiply the result from step 1 by 2 again.

Example

• To Multiply 7 by 4:
  1. Double 7: $7 \times 2 = 14$.
  2. Double 14: $14 \times 2 = 28$.

So, $7 \times 4 = 28$.

This method breaks down the multiplication into easier steps by using repeated doubling, making it quick and straightforward.