Square Of Any 2 Digit Number


Let’s understand this tip by taking examples:

69^2 = [6^2][9^2] + 20*6*9 = 3681 + 1080 = 4761

Similarly,

25^2 = [2^2][5^2] + 20*2*5 = 425 + 200 = 625

Take one more example

92^2 = [9^2][2^2] + 20*9*2 = 8104 + 360 = 8464

Please note, here [] is not an operation, it is only a separation between the initial 2 and last 2 digits