Question

- Find the square roots of the following:
(1) 156.25 (ii) 42.25
(iii) 53.59.

Answer 1

i. 12.5

ii. 6.5

iii. 7.32(approx)

Answer 2

Answer:

i) 12.25

ii) 6.5

iii) 7.32

Step-by-step explanation:

there is a short method for sq. roots of numbers who have 25 at their last. So you just simply have to ignore 25 and just focus on the digits other than 25. See that the digits except for 25 is a multiple of two consecutive numbers . For ex- If there is a number 5625 and you have to find its root so just see that 56 is a multiple of 7 and 8. You always have to take the smaller no. and yes instead of 25 you have to write 5. So the root of 5625 is 75.

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