Using this method, we can find square of numbers close to 100

**Example: Let’s find square of 97****Step 1:**Find how less or more is this number from 100

In this case it “3” less than 100

**Step 2:**Calculate last two digits of the answer (Units and Tens place) by finding square of this difference

*Square of 3 =*

**09****Step 3:**Add or Subtract the difference you got in Step 1 depending on whether it is more than or less than 100.

*97 is 3 ‘less’ than 100. So, 97 – 3 =*

**94****Answer:**Use the digits from Step 2 as the last two digits of the answer and the digits from Step 3 as the first two digits of your answer

*Hence, answer is*

**9409****Next example: Let’s find square of 109**

**Step 1:**

*109 is 9 ‘more’ than 100*

**Step 2:**

*Square of 9 =*

**81****Step 3:**

*Since 109 is more than 100 we will add this difference to the number. So, 109 + 9 =*

**118**Answer: Use the digits from Step 2 as the last two digits of the answer and the digits from Step 3 as the first three digits of your answer

*Answer is*

**11881**