Quick-delete in the Calculator app
If you use the calculator app a lot, you might like this handy and little-known time-saving trick.
The Calculator app, like real-world calculators, doesn't have a delete button, which can be annoying if you've just typed out a long number and made a mistake right at the end. Fortunately you can swipe across the number in the black area at the top - left or right, it doesn't matter - and for each swipe, a single digit will be removed from the end of the figure.
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