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# Mathematics - GRE, Fast calculation

Manoj Tomar
22/02/2017 0 0

Here you will learn fastest calculation method:-

EX.:-

15*15 = 225

25*25 = 625

35*35 = 1225

45*45 = 2025

55*55 = 3025

In all calculation first take unit place no. Multyply buy another unit place no.

In first no 15*15 like 5*5 write 25.

Now take tenth place no. Is 1 , add 1 in this no. And multy ply to another tenth place no.

In 15 tenth place no. Is 1 add 1 also now no. Is 2 then 2 multyply by 1 get 2.

25*25=

5*5= 25

2+1=3*2=6 , 25*25 = 625

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