{"system":{"system_id":"us_ccss","public_slug":"us-ccss","label":"US Common Core Math","official_source_urls":["https://thecorestandards.org/Math/","https://thecorestandards.org/standards-in-your-state/"]},"standard":{"system_id":"us_ccss","system_slug":"us-ccss","system_label":"US Common Core Math","code":"CCSS.1.OA.C.6","label":"addition facts, subtraction facts, within 20; calculate, fluently compute, explain.","public_slug":"curratom-us-ccss-1-oa-c-6","route":"/math/standards/us-ccss/curratom-us-ccss-1-oa-c-6","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-1-oa-c-6.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-1-oa-c-6.md","skill_count":4,"skills":[{"title":"Add Within 10 Concrete","route":"/math/skills/oa/add-within-10-concrete","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Add Within 20 Strategies","route":"/math/skills/oa/add-within-20-strategies","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Sub Within 10 Concrete","route":"/math/skills/oa/sub-within-10-concrete","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Sub Within 20 Strategies","route":"/math/skills/oa/sub-within-20-strategies","family_name":"Whole-Number Operations and Fact Fluency","standards":[]}],"crawler_summary":"CCSS.1.OA.C.6 maps to 4 math skills."}}