Grade 1 - Mathematical Process Standards
Standard 1.MPS.111.3.b.1B - Understand the place values of tens. Add 10 more or less to a number.
Included Skills: Mixed Equations
Use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution.