With 150 exercises for addition and subtraction (75 for each) and 50 blank "ten frame" templates for addition and subtraction (25 for each), your kids are capable to practice more.Ten Frames is an array of squares used to teach counting, number relationships and computation. The ten frame supports the concrete and visual understanding of a base-ten number system.The Book Details: (1) size 8.5" x 11," (2) 119 pages
