Puzzles and Figures: Problem 67: Digital Clock

Tuesday, August 7, 2018

Problem 67: Digital Clock

This is a fun problem! #iteachmath #PCTM2018 pic.twitter.com/0DRCg3xnwR
— Stephanie Diehl (@MathDiehls) August 6, 2018

-How many times in a 12-hour period will the digits on a digital clock have a sum of 10?

-How many times will they add up to 13?

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