Question

find the square root of following numbers by repeated subtraction method:- 64,81,100,121​

Answer 1

Answer:

1. 8

2. 9

3. 50

4. 11

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Answer 2

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1》64

$64 - 1 = 63$

$63 - 3 = 60$

$60 - 5 = 55$

$55 - 7 = 48$

$48 - 9 = 39$

$39 - 11 = 28$

$28 - 13 = 15$

$15 - 15 = 0$

$\sqrt{64} = 8$

$\sqrt{81} = 9$

$\sqrt{100} = 10$

$\sqrt{121} = 11$