Are you looking for differentiated place value pages to keep your students engaged during math centers? Number grid puzzles are a fun and engaging way for children to practice recognizing number patterns on the grid. These brain building worksheets are great for an independent math center, homework, the Fast Finisher, review, or for morning work. They also work well during an intervention lesson or after-school tutoring session.This product covers the following standards: CCSS 1.NBT.A.1, 1.NBT.C