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학생 지침
1. Read the problem on the page.
2. Use the 
to move the pictures to help solve the problem.
3. Use the 
or 
to write to solve the equations.
4. Use the to put the correct answers in each problem.
5. Complete all 3 
6. Click 
선생님 메모 (학생들에게는 보이지 않음)
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.
