100 Day Summer Challenge

100 problems in 100 days. #100problems

Day 57

57 of 100: Curious Calculator

Algebra Level 1

You have a calculator with 4 buttons as shown; they multiply the current value shown on the calculator by 2, divide the current value by 3, add 5 to the current value, or subtract 7 from the current value.

If the screen starts at 6, what is the fewest button presses you need to make to get a value of 1?

Hint: If working forwards from 6 is daunting, try working backwards from 1.


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