Maths trick
Square trick whose unit digit is 5 & ten's digit is 0.
i. e. (..05)²
Eg1 (105)²
1 | 0 | (5)²
(break)
(1)²| 1 | 0 |25
1| 1 | 0 |25 = 11025 Ans.
Eg2 (205)²
2| 0 |(5)²
(2)²|2| 0 |25
4|2| 0 |25 = 42025 Ans.
Note : above explanation eg1, unit digit 5 square & 0
compulsory , once time hundred place digit will be same & next time it's
square. Similarly eg2.
Eg3 . (505)²
5|0|(5)²
(5)²|5|0|25
25|5|0|25 = 255025 Ans.
Eg4. (705)²
Student do it
themselves.
497025
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