Decimal Squares manipulative! Learning made quick, simple, memorable and fun! Visual lessons and games that leave a lasting educated impression. 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. Sturdy, flexible, washable vinyl. One set of Decimal Squares suggested for activities with up to 4 children!