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Byju's Answer
Standard VIII
Mathematics
Finding Square Root through Repeated Subtraction
Find the squa...
Question
Find the square root of
100
using repeated subtraction.
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Solution
We need to find square root of
100
by repeated subtraction method.
It is done as follows:
100
−
1
=
99
99
−
3
=
96
96
−
5
=
91
91
−
7
=
84
84
−
9
=
75
75
−
11
=
64
64
−
13
=
51
51
−
15
=
36
36
−
17
=
19
19
−
19
=
0
We have subtract odd numbers from the given number.
So, we start with subtracting
1
form
100
which gives us
99
.
Now, subtract
3
from
99
which is
96
.
The process continues till we get the final answer as
0
.
The number of steps for which this operation has been performed will give the square root of the number.
In this case, we had to subtract in
10
steps to get to
0
. Hence, root of
100
is
10
.
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