Now how to count 35^{2 },45^{2 },55^{2} ,65^{2},75^{2}… faster than traditional method.

35^{2} ;

Add 1 to 3 = 4, then multiply the answer by 3 =

**12**

Then simply just put 25 after

**12..** = 1225.

45^{2} ; add 1 to 4 = 5, then multiply the answer by 4 = **20**.

Then simply just put 25 after **20**.. = 2025

How about 995^{2}?

Same method: add 1 to 99 = 100, then multiply the answer by 99 = 9900

Then simply just put 25 after **9900**.. = 990025

Easy right?

Remember practice makes perfect.

All the best for you!!!

## No comments:

Post a Comment