Developing number sense is something that takes kids time and a lot of effort, but these Number Sense Mystery Puzzles make learning exciting and challenging! This post contains Amazon affiliate links. Getting Ready Prepping this math activity was quick and easy! I started by printing out a few copies of the 100 chart and the matching mystery number cards (below). I printed everything on Astrobrights
Hundreds Chart Pieces Puzzle: I did these with my 2nd graders and it really helped them understand the patterns of the hundreds chart. Some found it easy and enjoyed doing them quickly, while others really struggled. There are leveled worksheets available online.