Square Root Trick 💥

For example, Try square 16! Bad trick, don’t use it!

17 .

√121 =?

17

This is NOT consistent - only clickbait.

Now do the square root of 36 the same way. It's 3+6=9, 9-2=7, right?

如果是根号36呢

√196; √169; √619; √691; √961; √916 ... always the same result?

Square root 12 doesn’t work