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Standard 2.ATO.1
2.ATO.1 Solve one- and two-step real-world/story problems using addition (as a joining action and as a part-part-whole action) and subtraction (as a separation action, finding parts of the whole, and as a comparison) through 99 with unknowns in all pos...
Grade(s): 2
Subject(s): Math
Year: 2015