Ideas from books, articles & podcasts.
Step 1: Since the no.s end with one our answer will contain the last digit as 1. Have that in mind.
Step 2: Now add both the tens digits i.e., (x + y) this is you tens place. (In case of double digit add it after step 3)
We often double or square things from time to time hence, in order to speed up your calculations it is essential to know the powers of 2. (Trust me this is indeed a super useful tool). Once you have manage to do this your calculations will become a lot simpler.
Here it is,
From time to time we tend to double or square things. In fact 2 is a very common no. used in our day-to-day life. So in order to ace your calculations you will be needing this and I'm happy to give this to you.
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