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HOW TO QUICKLY TAKE SQUARE OF ANY
NUMBER OF THE FORM (A5)²
Remember this:
(A5)²= [A(A+1)25]
Examples:-
(65)² = 6(6+1)25 = 6(7)25 = 4225
(95)² = 9(9+1)25 = 9(10)25 = 9025
©TRICKS FOR MATHEMATICS @M&E CAT PREPARATION CORNER
@UET/NUST Test Prep Forum
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Mathematics Tricks (2nd Edition) C-O
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