ax+bx-2
EXEF
1. Find the square root of 81 and 121 by
method of repeated subtraction.
Answers
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1
Answer:
√81=
81 - 1 = 80
80 - 3 = 77
77 - 5 = 72
72 - 7 = 65
65 - 9 = 56
56 - 11 = 45
45 - 13 = 32
32 - 15 = 17
17 - 17 = 0
Count the total steps, that is 9 , which is your square root of 81
√121=
121 - 1 = 120
120 - 3 = 117
117 - 5 = 112
112 - 7 = 105
105 - 9 = 96
96 - 11 = 85
85 - 13 = 72
72 - 15 = 57
57 - 17 = 40
40 - 19 = 21
21 - 21 = 0
Similarly count the steps and your square root of 121 is 11
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