Blog
2018-12-08
Christmas card 2018
Showing all comments about the post Christmas card 2018. To return to the blog post, click here.
Comments
Comments in green were written by me. Comments in blue were not written by me.
2018-12-17
@Carmel: It's not meant to check your answers. It only shows up red if the number you enter cannot be split into valid pairs (eg the number has an odd number of digits or one of the pairs of digits is greater than 20).Matthew
Great puzzle problems! Hint on #9: try starting with an analogous problem using smaller numbers (e.g. 3a + 10b). This helped me to see what I had to do more generally.
Noah
Loved these puzzles! I have no idea how to approach #9, though. Will the solutions be posted at any point? Or, can anyone provide a hint to how to approach it?
Seth
Add a Comment