Arithmetic Progression Puzzles: Keep Numbers Unevenly Spaced
Pick as many numbers as you can with no three evenly spaced. The midpoint test, greedy pass and doubling trick, with worked examples and practice.
Riddle10 blog
Riddle10 blog
Pick as many numbers as you can with no three evenly spaced. The midpoint test, greedy pass and doubling trick, with worked examples and practice.