Mathematics Standards of Learning for Virginia Public Schools (2023)

2.CE.1h

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Use inverse relationships to write all related facts connected to a given addition or subtraction fact model within $20$ (e.g., given a model for $3 + 4 = 7$, write $4 + 3 = 7$, $7 – 4 = 3$, and $7 – 3 = 4$

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