Question

Pls tell the answer with explanation, i have finish this hw

Answer 1

Explanation:

Finding square root by repeated subtraction method:

In this, the given number is subtracted by consecutive odd numbers (1,3,5,7,9.....) till we fer zero at the end. Count the number of steps performed and this number will be square root of the given number.

a) 49

1. 49 -1 = 48
2. 48 - 3 = 45
3. 45 - 5 = 40
4. 40 - 7 = 33
5. 33 - 9 = 24
6. 24 - 11 = 13
7. 13 - 13 = 0

√49 = 7

b) 64

1. 64 - 1 = 63
2. 63 - 3 = 60
3. 60 - 5 = 55
4. 55 - 7 = 48
5. 48 -9 = 39
6. 39 -11 = 28
7. 28 - 13 = 15
8. 15 - 15 = 0

√64 = 8

Answer 2

7 and 8

Explanation:

49 - 1 = 48. (1)

48 - 3 = 45. (2)

45 - 5 = 40. (3)

40 - 7 = 33. (4)

33 - 9 = 24. (5)

24 - 11 = 13. (6)

13 - 13 = 0. (7) The answer is 7

64 - 1 = 63. (1)

63 - 3 = 60. (2)

60 - 5 = 55. (3)

55 - 7 = 48. (4)

48 - 9 = 39. (5)

39 - 11 = 28. (6)

28 - 13 = 15. (7)

15 - 15 = 0. (8) the answer is 8