I have 3 mysterious questions for you this week. Don’t worry, there will be a computer-related tip before we’re done here.

Mystery number 1: Why can’t I add simple numbers in my head?

This is just a simple addition problem. But you cannot use a calculator or a pencil and paper. This must be done completely in [...] Read more »

The post Questions that seem to have no answer first appeared on The Computer Tutor.

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