This simple and well-organized reference sheet is broken into 10 color-coded chartst that count by ones in increments of 10. Each chart is a different color for easy reference. This can either be printed and distributed to students and/or used as a poster. It can also be laminated and used again and again. This serves as a great tool for struggling students, for differentiation, and for so much more. Try using it to support addition, subtraction, multiplication and addition! Be sure to also check out our rounding reference chart!