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Standards/Math/South Carolina/2.ATO

2.ATO

2 Grade 2
2.ATO
2.ATO.12.ATO.22.ATO.32.ATO.4
2.G
2.MDA
2.NSBT

Algebraic Thinking and Operations

2.ATO.1Solve 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 positions.2.ATO.2Demonstrate fluency with addition and related subtraction facts through 20.2.ATO.3Determine whether a number through 20 is odd or even using pairings of objects, counting by twos, or finding two equal addends to represent the number (e.g., 3 + 3 = 6).2.ATO.4Use repeated addition to find the total number of objects arranged in a rectangular array with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
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