This set includes 4 fun Valentine's Day themed mystery pictures for numbers between 0 and 1000. Each picture includes 20 clue cards that have a number represented and a direction of which colour to use for that number. Numbers are represented using base 10 blocks, in expanded form, hundreds, tens and ones, and +10/+100. This is a great activity for fast finishers, as a fun time filler, or for students who need a little more practice. Both Australian and U.S.A. versions are included for spelling (colour/color).