Finished calculator#6

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jeremyking1996 wants to merge 3 commits intocode-differently:mainfrom

jeremyking1996:main

Commits on Nov 15, 2020

Content no format
jeremyking1996
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Commits on Nov 19, 2020

Fixed button size
jeremyking1996
committed

Commits on Nov 22, 2020

finished formatting
jeremyking1996
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