DecaDots Ten-Frame Tiles (Set of 30) Ten-frame tiles provide an intuitive and visual representation of patterns for numbers up to 10. Children will quickly learn shortcuts such as counting the spaces remaining (counting back from 10) instead of counting the number of dots. The blue ten-tile emphasizes the importance of 10 in place value and allows students to more rapidly identify and create two-digit numbers. Once students recognize these simple patterns, they can more easily master beginning addition and subtraction skills. INCLUDES: 1 set of 10 blue 10-dot tiles and 1 set of 20 yellow tiles (2 each of 0- to 9-dot tiles)