Square and Square Root of 100 base method
Example 1: 982= ?
Answer :
Step 1: First we know that 982 is double of 98 that is = 98 x 98 = ?,
At first we count the number of less from 100. that is the above 98 is 2 less from 100.
Step2: Now we are going to multiply 2 x 2 = 4 and note down this 4 ( that are come from both less 98 x 98 from 100).
Step 2: put one Zero left from 4 and now subtract the less number is 2 from 98 that is = 96and the answer is 9604.
Example 2 : 962 = ?
Answer :
Step 1: First we know that 962 is double of 96 that is = 96 x 96 = ?,
At first we count the number of less from 100. that is the above 96 is 4 less from 100.
Step 2: Now we are going to multiply 4 x 4= 16 and note down this 16 ( that are come from both less 96 x 96 from 100).
Step 3: now subtract the less number is 4 from 96 that is = 92 and put down it
that is 9261
and the answer is 9216.