@hermanntrude

Nerdy trick. Impress your friends by taking cube roots in your head

Step 1: memorise the following:

1³=1
2³=8
3³=27
4³=64
5³=125
6³=216
7³=343
8³=512
9³=729

Step 2: get a friend to take a calculator and enter a 2 digit number and then cube that number and tell you the answer

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