All practice problems from the unit. Unit: 1.2 Addition and Subtraction Story Problems (Grade 1). 1.2 Addition and Subtraction Story Problems Unit Goals Students solve new types of story problems within 10 using the relationship between addition and subtraction. They develop an understanding of the meaning of the equal sign and connect story problems to equations. Section A Goals Solve Add To and Take From, Result Unknown and Add To, Change Unknown story problems. Understand the meaning of the equal sign. Section B Goals Solve Put Together/Take Apart problems with the unknown in different positions. Write equations to represent problems. Section C Goals Relate addition and subtraction. Sol