MA.A.3.1.1.2

• poses and solves simple number problems by selecting the proper operation (for example, finding how many students are sitting at tables one and two).
• uses concrete objects to solve number problems with one operation.
• describes thinking when solving number problems
• writes number sentences associated with addition and subtraction situations

MA.1.A.6.2
Solve routine and non-routine problems by acting them out, using manipulatives, and drawing diagrams.