The Common Core in California

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Skills available for California first-grade math standards

Standards are in black and IXL math skills are in dark green. Hold your mouse over the name of a skill to view a sample problem. Click on the name of a skill to practice that skill.

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1.1.OA Operations and Algebraic Thinking

1.1.NBT Number and Operations in Base Ten

1.1.MD Measurement and Data

1.1.G Geometry