**Manipulative Blocks (2 sets are required for the Primer & Gamma levels)**

The manipulative blocks are used in all of the Math·U·See levels from Primer to Algebra 1. There are 88 pieces in this colorful, base-10 set of stacking blocks used to teach all aspects of arithmetic. The same blocks are used in conjunction with the Inserts to illustrate key algebra and decimal concepts. The set consists of five each of the 2s, 3s, 4s, 6s, 7s, 8s, 9s, and 100s; seven 5s, twenty units and twenty-one 10s.