Beetle, the first of six abacus skills introduces basic number recognition and bead representation. Introduction of simple bead and finger movements for digits 0 through 9. Single digit addition and subtraction without complements. The last Beetle lesson will introduce double digit numbers. Each Basic Skill Training level will have multiple incremental steps to ensure all students have math success. The abacus skills learned in the Basic Skill Training program are the basis for students to develop strong mental calculation skills.