median
don steward
mathematics teaching 10 ~ 16

Sunday, 18 May 2014

1 to 9 multiplied

the idea for this (and the first question) is from nrich 1134

thinking enables the (usually unique) solutions to be found



































also see: NRICH multiplication equation sudoku
Posted by
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)