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Original
2026-01-01
Modified
2026-02-28
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<p>This is a method used for obtaining the square root for non-<a>perfect squares</a>, mainly. It usually involves the division of the<a>dividend</a>by the<a>divisor</a>, getting a<a>quotient</a>and a<a>remainder</a>too sometimes.</p>
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<p>This is a method used for obtaining the square root for non-<a>perfect squares</a>, mainly. It usually involves the division of the<a>dividend</a>by the<a>divisor</a>, getting a<a>quotient</a>and a<a>remainder</a>too sometimes.</p>
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<p>Follow the steps to calculate the square root of 89:</p>
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<p>Follow the steps to calculate the square root of 89:</p>
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<p><strong>Step 1 :</strong>Write the number 89, and draw a horizontal bar above the pair of digits from right to left.</p>
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<p><strong>Step 1 :</strong>Write the number 89, and draw a horizontal bar above the pair of digits from right to left.</p>
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<p><strong>Step 2 :</strong>Now, find the greatest number whose square is<a>less than</a>or equal to 89. Here, it is 9, Because 92=81 < 89.</p>
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<p><strong>Step 2 :</strong>Now, find the greatest number whose square is<a>less than</a>or equal to 89. Here, it is 9, Because 92=81 < 89.</p>
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<p><strong>Step 3 :</strong>Now divide 89 by 9 (the number we got from Step 2) such that we get 9 as quotient and then multiply the divisor with the quotient, we get 81. Subtract 81 from 89, we get 8. Add a<a>decimal</a>point after the quotient 9, and bring down two zeroes and place it beside 8 to make it 800.</p>
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<p><strong>Step 3 :</strong>Now divide 89 by 9 (the number we got from Step 2) such that we get 9 as quotient and then multiply the divisor with the quotient, we get 81. Subtract 81 from 89, we get 8. Add a<a>decimal</a>point after the quotient 9, and bring down two zeroes and place it beside 8 to make it 800.</p>
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<p><strong>Step 4:</strong>Add 9 to same divisor, 9. We get 18.</p>
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<p><strong>Step 4:</strong>Add 9 to same divisor, 9. We get 18.</p>
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<p><strong>Step 5:</strong>Now choose a number such that when placed at the end of 18, a 3-digit number will be formed. Multiply that particular number by the resultant number to get a number less than 800. Here, that number is 4. </p>
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<p><strong>Step 5:</strong>Now choose a number such that when placed at the end of 18, a 3-digit number will be formed. Multiply that particular number by the resultant number to get a number less than 800. Here, that number is 4. </p>
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<p>184×4=736<800.</p>
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<p>184×4=736<800.</p>
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<p><strong>Step 6:</strong>Do 800-736=64. Again, bring down two zeroes and make 64 as 6400. Simultaneously add the unit’s place digit of 184, i.e., 4 with 184. We get here, 188. Apply Step 5 again and again until you reach 0. </p>
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<p><strong>Step 6:</strong>Do 800-736=64. Again, bring down two zeroes and make 64 as 6400. Simultaneously add the unit’s place digit of 184, i.e., 4 with 184. We get here, 188. Apply Step 5 again and again until you reach 0. </p>
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<p>We will show two places of precision here, and so, we are left with the remainder, 751 (refer to the picture), after some iterations and keeping the division till here, at this point </p>
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<p>We will show two places of precision here, and so, we are left with the remainder, 751 (refer to the picture), after some iterations and keeping the division till here, at this point </p>
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<p> <strong>Step 7 :</strong>The quotient obtained is the square root. In this case, it is 9.43….</p>
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<p> <strong>Step 7 :</strong>The quotient obtained is the square root. In this case, it is 9.43….</p>
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