The famous Decimal Squares® manipulative! Decimal Squares®(R) have long set the standard for decimal manipulatives. Decimal Squares® are the only decimal manipulative that includes thousandths and easily shows comparisons for equality and inequality and the four operations on decimals. Meets NCTM standards. Includes 57 squares that are color coded and shaded to present tenths, hundredths and thousandths. The squares are made from sturdy, flexible, washable vinyl. One set of Decimal Squares® can be used for activities with up to 4 children! Grades 3-9.