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Standard 3.Uses basic and advanced procedures while performing the processes of computation
Benchmark 2
Solves real-world problems involving addition and subtraction of whole numbers
Knowledge/skill statement 1
Determines whether a problem can be solved by subtracting whole numbers
S(ME,78;S1E,60)

Related assessment item(s):
Subtraction problem(T1)
Determine the solution of the word problem using subtraction(T1)
Determine the solution to the word problem using addition and subtraction(T1)

Performance expectation(s):
Analyzes problem situations and contexts in order to figure out when to subtract (S1)

Common Core Reference:
K.OA.2; 1.OA.1;  2.OA.1
K.OA.2 Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.

1.OA.1 Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.