Tag Archives: Peter Liljedahl

Joint Investment

Would you have known immediately that the number 1729 is the sum of two cubes? You think you’re so smart, but you’re no Ramanujan. He told Hardy that 1729 is the sum of two cubes in two ways: 13+123 and 93+103. I read The Man Who Knew Infinity a few years ago. I might check out the movie when it hits […]

Posted in Math 8, Problem Solving | Also tagged , , , | 3 Responses

The Shoe Sale

(On a side note, I’m not sure what I love more, my left foot or Google Classroom.) This problem is from Peter Liljedahl’s site. The Shoe Sale You decide to take advantage of a buy 2 pair get 1 pair of equal or lesser value for free sale at the local shoe store. The problem is […]

Posted in Course 1 (6th Grade Math), Math 8 | Also tagged , , , , | 3 Responses