Can we say whether the following numbers are perfect squares? How do we know? 7928
Write five numbers which you can decide by looking at their units digit that they are not square numbers.

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Write five numbers which you cannot decide just by looking at their unit's digit (or one's place) whether they are square numbers or not.

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What will be the one's digit in the square of the following numbers? 21222

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What will be the number of zeros in the square of the following numbers? 60

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Find the square root of each of the following numbers by division method.1024

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Find the number of digits in the square root of each of the following numbers (without any calculation). 144

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Find the square root of the following decimal numbers. 2.56

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What is the least number to be added to 8200 to make it a perfect square (using division method)?

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EvauIate. \(\sqrt { \frac { 0.0289 }{ 0.0121 } } +\sqrt { \frac { 64 }{ 16 } } \)

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How many perfect squares lie between 1 and 50?

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Find the square of 6.1.

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Express the following as the sum of two consecutive integers. 11²

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Express the following as the sum of two consecutive integers. 19²

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How many numbers lie between squares of:
27 and 28

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Write the Pythagorean triplet whose one member is 13.

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