Question: 15625 find the square root by division method
Split the number 15625 into lots of 2 (i.e. powers of 100) starting from the right, as follows. 1 56 25.
Now start with the square root of the left-most "100", i.e. sqrt(1) = 1
1 2 5
1 ) 1 56 25 -- multiply the 1 on the top by the 1 on the left and subtract from the 1 of the 15625
1 1 -- add the 1 from the top to the 1 on the left to get 2 and put it underneath.
22 0 56 -- put 2 on the top, and also beside the 2 just put down, then multiply together.
2 44 -- 2*22 = 44, so subtract this from the 56
24 5 12 25 -- now put 5 on the top and 5 beside the 24, and multilpy together.
12 25
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Answer: square root of 15625 is 125