Rod & Staff Grade 3 Math, Third Edition has 170 lessons. It reviews addition and subtraction skills, teaches multiplication and division facts through table 9, and simple two- and three-step multiplication and division. Other concepts drilled are fraction meaning, measure equivalents, money values, and telling time. Mi Memoria Press product: https://www.memoriapress.com/curriculum/math/rod-staff-grade-3-math-student-workbook-4-third-edition/