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Standards/Math/South Carolina/1.ATO

1.ATO

1 Grade 1
1.ATO
1.ATO.11.ATO.21.ATO.31.ATO.41.ATO.51.ATO.61.ATO.6a1.ATO.6b1.ATO.71.ATO.81.ATO.91.ATO.9a1.ATO.9b
1.G
1.MDA
1.NSBT

Algebraic Thinking and Operations

1.ATO.1Solve 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 20 with unknowns in all positions.1.ATO.2Solve real-world/story problems that include three whole number addends whose sum is less than or equal to 20.1.ATO.3Apply Commutative and Associative Properties of Addition to find the sum (through 20) of two or three addends.1.ATO.4Understand subtraction as an unknown addend problem.1.ATO.5Recognize how counting relates to addition and subtraction.1.ATO.6Demonstrate:1.ATO.6aAddition and subtraction through 20.1.ATO.6bFluency with addition and related subtraction facts through 10.1.ATO.7Understand the meaning of the equal sign as a relationship between two quantities sameness) and determine if equations involving addition and subtraction are true.1.ATO.8Determine the missing number in addition and subtraction equations within 20.1.ATO.9Create, extend and explain using pictures and words for:1.ATO.9aRepeating patterns (e.g., AB, AAB, ABB, and ABC type patterns).1.ATO.9bGrowing patterns (between 2 and 4 terms/figures).
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