{"system":{"system_id":"uk_england_nc","public_slug":"uk-england-nc","label":"England National Curriculum: Mathematics","official_source_urls":["https://www.gov.uk/government/publications/national-curriculum-in-england-mathematics-programmes-of-study/national-curriculum-in-england-mathematics-programmes-of-study","https://www.gov.uk/national-curriculum"]},"standard":{"system_id":"uk_england_nc","system_slug":"uk-england-nc","system_label":"England National Curriculum: Mathematics","code":"England Y1 Number add sub symbols statements","label":"addition, subtraction, equals sign; read, write, interpret.","public_slug":"curratom-england-nc-y1-number-addition-and-subtraction-read-write-interpret-mathematical-statements-involving-addition","route":"/math/standards/uk-england-nc/curratom-england-nc-y1-number-addition-and-subtraction-read-write-interpret-mathematical-statements-involving-addition","data_json_route":"/math/data/standards/uk-england-nc/curratom-england-nc-y1-number-addition-and-subtraction-read-write-interpret-mathematical-statements-involving-addition.json","data_markdown_route":"/math/data/standards/uk-england-nc/curratom-england-nc-y1-number-addition-and-subtraction-read-write-interpret-mathematical-statements-involving-addition.md","skill_count":2,"skills":[{"title":"Truth Value Equations","route":"/math/skills/logic/truth-value-equations","family_name":"Equations, Variables, Expressions, and Inequalities","standards":[]},{"title":"Balancing equations","route":"/math/skills/prealg/equation-balance","family_name":"Equations, Variables, Expressions, and Inequalities","standards":[{"system_id":"us_ccss","code":"CCSS.1.OA.D.7","label":"Understand the meaning of the equal sign and determine if equations are true or false.","route":"/math/standards/us-ccss/1-oa-d-7"},{"system_id":"uk_england_nc","code":"UK-NC-Y4-equivalence-balance","label":"Use inverse operations and equality relationships to solve missing-number statements.","route":"/math/standards/uk-england-nc/y4-equivalence-balance"},{"system_id":"singapore_primary","code":"SG-Primary4-Algebra-Balance","label":"Use bar or balance models to solve unknowns in equations.","route":"/math/standards/singapore-primary/sg-primary4-algebra-balance"}]}],"crawler_summary":"England Y1 Number add sub symbols statements maps to 2 math skills."}}