"The lighthouse is lit," Silas said, leaning back. "Now, go do your sums."
Covers more advanced algebraic and geometric concepts, such as linear equations, expansion and factorization of algebraic expressions, and proportions. PDF Links and Availability casco mathematics tutor 2a pdf link
Worked solutions are usually provided for self-correction. Versions of Tutor 2A "The lighthouse is lit," Silas said, leaning back