Houghton Mifflin Math, Grade 2, Vol. 1, Student Edition

From Contents - Number Concepts Through 50; Addition Facts; Subtraction Facts; Data, Graphing and Probability; Place Value; Number Concepts and Patterns; Plane Shapes; Solid shapes; Fractions; Regrouping with Addition; Using Two-Digit Addition; Regrouping with Subtraction; Using Two-Digit Subtraction; Counting Money; Using Money; Time and Calendar; Length; Weight, Capacity and Temperature; Multiplication and division; Numbers Through 10,000; Adding Three-Digit Numbers; Subtracting Three-Digit Numbers. (Description by http-mart)