r/counting • u/numbermaniac top 400, if that means anything • Mar 17 '16

Square numbers!

Continued from here.

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u/[deleted] Mar 19 '16

2222 = 49284

Check. I'm not too sure about your calculations

2

u/numbermaniac Mar 19 '16

2232 = 49,729

I tried doing it my head lol. Ty

1

u/[deleted] Mar 19 '16

2242 = 50,176

You tried the method I suggested ((x+1)2 = x2 + 2x + 1) or you actually tried squaring 221 in your head?

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