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Courses Maths & Science Maths

2 digit numbers and their squares

Hi, here we have the list of squares of all the 2 digit numbers, which if you could keep in your mind, then more than half of your 2 digit multiplications will be a piece of cake. You can further add various identities to simplify the work. like, 87x69=78^2 - 9^2 = 6084-81 = 6003 (quite easy, huh? ). So, your job is to pickup the right identity and use your knowledge of squares, and do the math quickly :)

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