It introduces the decimal quantities of 1, 10, 100, and 1000. The child learns to understand the place value through this material.

The Tray contains one golden unit bead one ten bead bar, one hundred square, and one thousand cube which is used mainly in Montessori decimal system to demonstrate values of ones, tens, hundreds, and thousands; to associate beads to numbers; and to operate mathematical equations in addition, subtraction, multiplication and division.