Barker Creek’s 1-100 Number Grids Set measures 17″ x 22″ chart. Use this chart for teaching even and odd numbers, counting by 5’s and 10’s, and for counting to 99. One of the advantages of working with a 0-99 number grid is that the number families appear on the same row (i.e. 0 to 9 are on the top row, 10 to 19 are on the second row, 20 to 29 are on the third row) and so on. The back of this chart includes two reproducible 0-99 number grids — one with numbers and a second grid without numbers (so your students can create their own number charts). A list of suggested math and counting activities is also included. This chart is printed on Durable 10-Point Poster board. Coordinating products are available. Search: Barker Creek Math.