Let’s do this by example

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Square root of 17.64 by long division
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**

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Therefore,

Square root of 17.64 =
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4.2
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Individual Steps are explained
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Step
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1:
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- Write the number
- We make pairs from right.

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For numbers before decimal point,
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we start from right and make pairs

So, 17 is a pair

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For numbers
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after
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decimal point,
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we start from the right of decimal point and make pairs

So, 64 is a pair

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Step 2:
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Now we find that number whose

square is less than or equal to 16.

3 × 3 = 9

4 × 4 = 16

5 × 5 = 25

Since 25 > 17, we use 4 × 4.

So writing 4 on left side & top.

& 16 below 17

Now we find remainder,

17 − 16 = 1

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Step 3:
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Since next is decimal point

We put a decimal point on top

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Step
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**
4
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Pair 64 comes down

So, our number is now 164

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Step
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5
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We multiply the number above by 2

& add a blank after it

So, we write 4 × 2 = 8

8 _

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Step
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6
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Find a number which is less than

Or equal to 164

81 × 1 = 81

82 × 2 = 164

Since 82 × 2 = 164. We use that

Thus,

Square root of 17.64 = 4.2

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**
Square root of 1.125 by long division
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Therefore,

Square root of 1.125 =
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1.060…
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Here, we can find square root
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upto
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more decimal digits.
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But, we stop at 3 digits after decimal point
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