TABE 11 & 12 is a placement test used by ABE programs throughout the U.S. and Canada. Scoreboost for TABE prepares students for the TABE test by providing targeted instruction in language, mathematics, and reading. The TABE Level D Math 2 (Ratios and Proportional Relationships) workbook targets using tables and graphs of proportions; graphing and using equations to represent proportional relationships; calculating unit rates; using percents and converting measurement units; solving ratio and rate problems; solving two-step equations and inequalities; understanding exponents and roots; and solving systems of equations. A TABE practice test and answer key are provided at the back of the workbook. Level D (difficult) corresponds to reading levels 6.0 to 8.9.