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Mathematics

For each of the following, find the least number that must be added so that the resulting number is a perfect square.

511

Sq & Sq Roots

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Answer

Using division method:

For each of the following, find the least number that must be added so that the resulting number is a perfect square. Squares and Square Roots, Concise Mathematics Solutions ICSE Class 8.

Clearly, 511 is greater than 222.

∴ On adding the required number to 511, we shall be getting 232 i.e, 529.

So, the required number = 529 - 511 = 18.

Hence, 18 should be added to 511.

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