Squares of Numbers of Ends with 5

1. Multiply the first digit on the left with itself + 1 and put 25 on the end.

For example: Find (45) ² =?

Step 1. 45 x 45 = …….25 (in the end)

Step 2.  4x (4+1) = 4 x 5 = 20

Hence the answer will be 2025.

Try 15² :

2. 25² :

3. 35² :

4. 45² :

5. 55² :

6. 65² :

7. 75² :

8. 85² :

9. 95² :

10. 105² :