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Puzzle #9: Calculator
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Puzzle #9: Calculator

As a tribute to the old school, can you build a Calculator?
As a tribute to the old school, can you build a Calculator? It should support all 4 operators (+ - x /).

Difficulty: Hard



For example: "408+3897=" should result in 4305, “12-35=” should result in -23, “9x16=” should result in 144, "36/9=" should result in 4 and so on.

Looking for a bigger challenge?
Try the
to add more calculator functions.

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