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How many perfect squares below 1,000 have units digit 2

 Apr 29, 2022
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The perfect squares below 1,000 are:

 

 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400, 441, 484, 529, 576, 625, 676, 729, 784, 841, 900 and 961

 

The answer is ...

 

Could you have figured out the answer without the list?

 Apr 29, 2022

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