Question

find the square root of 49, 25 and 64 by repeated subtraction method​

Answer 1

Answer:

49-1=48

48-3=45

45-5=40

40-7=33

33-9=24

24-11=13

13-13=0

Hence the square root of 49 is 7

25-1=24

24-3=21

21-5=16

16-7=9

9-9=0

Hence the square root of 25 is 5

64-1=63

63-3=60

60-5=55

55-7=48

48-9=39

39-11=28

28-13=15

15-15=0

Hence the square root of 64 is 8