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There are nine blanks, each of which can be filled by one of four operators, so there are 9^4 = 262,144 possibilities in the notebook: ipynb/Countdown.ipynb
It should be 4^9 = 262144
The text was updated successfully, but these errors were encountered:
There is a typo:
There are nine blanks, each of which can be filled by one of four operators, so there are 9^4 = 262,144 possibilities
in the notebook: ipynb/Countdown.ipynbIt should be
4^9 = 262144
The text was updated successfully, but these errors were encountered: