Question

find the square root of 81 by the
method
of repeated subtraction.​

Answer 1

Answer:

81 – 1 = 80. 80 – 3 = 77.

Hope it helps you and if then please mark my answer as Brainliest.

Answer 2

Answer:

9

Step-by-step explanation:

1. 81 - 1 = 80

2. 80 - 3 = 77

3. 77 - 5 = 72

4. 72 - 7 = 65

5. 65 - 9 = 56

6. 56 - 11 = 45

7. 45 - 13 = 32

8. 32 - 15 = 17

9. 17 - 17 = 0

From 81 we have subtracted successive odd number starting from 1 and obtained 0 at 9th step.

Therefore, Square root of 81 = 9.