{"system":{"system_id":"singapore_primary","public_slug":"singapore-primary","label":"Singapore MOE Primary Mathematics","official_source_urls":["https://www.moe.gov.sg/api/media/92bff26d-b2b4-4535-b868-b8415c744b91/2021-Primary-Mathematics-Syllabus-P1-to-P6-Updated-October-2025.pdf","https://www.moe.gov.sg/primary/curriculum/syllabus"]},"standard":{"system_id":"singapore_primary","system_slug":"singapore-primary","system_label":"Singapore MOE Primary Mathematics","code":"Singapore P2 Number and Algebra add sub within 1000","label":"addition, subtraction, within 1000; calculate, solve, explain.","public_slug":"curratom-singapore-moe-p2-number-and-algebra-addition-and-subtraction-p2-add-subtract-1000-mental-strategies-algorithms","route":"/math/standards/singapore-primary/curratom-singapore-moe-p2-number-and-algebra-addition-and-subtraction-p2-add-subtract-1000-mental-strategies-algorithms","data_json_route":"/math/data/standards/singapore-primary/curratom-singapore-moe-p2-number-and-algebra-addition-and-subtraction-p2-add-subtract-1000-mental-strategies-algorithms.json","data_markdown_route":"/math/data/standards/singapore-primary/curratom-singapore-moe-p2-number-and-algebra-addition-and-subtraction-p2-add-subtract-1000-mental-strategies-algorithms.md","skill_count":2,"skills":[{"title":"Add Sub Within 1000 Algorithm","route":"/math/skills/nbt/add-sub-within-1000-algorithm","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Add Sub Within 1000 Models","route":"/math/skills/nbt/add-sub-within-1000-models","family_name":"Whole-Number Operations and Fact Fluency","standards":[]}],"crawler_summary":"Singapore P2 Number and Algebra add sub within 1000 maps to 2 math skills."}}