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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
484
using repeated subtraction.
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Solution
We have subtract odd numbers from the given number.
So, we start with subtracting
1
from
484
which gives us
483
.
Now, subtract
3
from
483
which is
480
.
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.
484
−
1
=
483
483
−
3
=
480
480
−
5
=
475
468
−
9
=
459
459
−
11
=
448
448
−
13
=
435
435
−
15
=
420
420
−
17
=
403
403
−
19
=
384
384
−
21
=
363
363
−
23
=
340
340
−
25
=
315
315
−
27
=
288
288
−
29
=
259
259
−
31
=
228
228
−
33
=
195
195
−
35
=
160
160
−
37
=
123
123
−
39
=
84
84
−
41
=
43
43
−
43
=
0
In this case, we had to subtract in
22
steps to get to
0
. Hence, root of
484
is
22
.
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