[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-638032-105":59,"doc-detail-638032-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","subtraction-up-to-20-sheet-1-practice-exercise","Subtraction Up to 20 - Sheet 1 - Practice Exercise","","This educational resource provides a comprehensive set of subtraction exercises designed for primary school students learning to work with numbers up to 20. The document includes a structured practice sheet featuring 24 individual subtraction problems, ranging from simple subtractions to more complex double-digit calculations. In addition to the practice problems, the document features an answer key to facilitate self-assessment or teacher evaluation. A specialized conceptual question encourages students to explore numerical relationships, specifically comparing results like 18-5 and 8-5 to help deepen their understanding of place value and subtraction mechanics. This material is highly effective for building mental arithmetic skills and reinforcing foundational mathematical concepts for early learners in a classroom or home study setting.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/subtraction-up-to-20-sheet-1-practice-exercise/638032/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/subtraction-up-to-20-sheet-1-practice-exercise/638032.png","ImageObject",300,407,{"name":92,"@type":93},"LangkahRina","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-22",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the objective of this document?","Question",{"text":112,"@type":113},"The document provides practice exercises for students to improve their mental subtraction skills using numbers up to 20.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How many subtraction problems are included in the practice sheet?",{"text":117,"@type":113},"There are 24 subtraction problems provided on the worksheet.",{"name":119,"@type":110,"acceptedAnswer":120},"What is the purpose of the key question regarding 18-5 and 8-5?",{"text":121,"@type":113},"The question encourages students to identify numerical patterns, specifically that the result of 18-5 is 10 more than the result of 8-5.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},638032,1792926025,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":24},962090893776,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Name Date  \nSUBTRACTION UP TO 20 SHEET 1  \nONE TO TWENTY CHALLENGE  \n| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n\n1) 13-2 =   13) 19-6 =   2) 15-4 =   14) 17-4 =   3) 12-10 =   15) 16-2 =   4) 14-3 =   16) 18-4 =   5) 15-5 =   17) 15-7 =   6) 16-7 =   18) 8-5 =   7) 19-2 =   19) 18-5 =   8) 20-3 =   20) 19-13 =   9) 15-4 =   21) 17-9 =   10) 12-9 =   22) 18-7 =   11) 10-7 =   23) 17-5 =    \n12) 16-4 =   24) 14-8 =    \nKey question: what do you notice about the answer to 18-5 and the answer to 8-5?  \nName Date  \nSUBTRACTION UP TO 20 SHEET 1 ANSWERS  \nONE TO TWENTY CHALLENGE  \n| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n\n1) 13-2 =  11   \n2) 15-4 =  11   \n3) 12-10 =  2   \n4) 14-3 =  11   \n5) 15-5 =  10   \n6) 16-7 =  9   \n7) 19-2 =  17   \n8) 20-3 =  17   \n9) 15-4 =  11   \n10) 12-9 =  3   \n11) 10-7 =  3   \n12) 16-4 =  12   \n13) 19-6 =  13   \n14) 17-4 =  13   \n15) 16-2 =  14   \n16) 18-4 =  14   \n17) 15-7 =  8   \n18) 8-5 =  3   \n19) 18-5 =  13   \n20) 19-13 =  6   \n21) 17-9 =  8   \n22) 18-7 =  11   \n23) 17-5 =  12   \n24) 14-8 =  6   \nKey question: what do you notice about the answer to 18-5 and the answer to 8-5? Answer: the answer to the 1st question is 10 more.","cbCailQJs5ITAzxD","https://ap.wps.com/l/cbCailQJs5ITAzxD","pdf",147419,"English","# Subtraction Problems\n## Answer Key","[{\"question\":\"What is the objective of this document?\",\"answer\":\"The document provides practice exercises for students to improve their mental subtraction skills using numbers up to 20.\"},{\"question\":\"How many subtraction problems are included in the practice sheet?\",\"answer\":\"There are 24 subtraction problems provided on the worksheet.\"},{\"question\":\"What is the purpose of the key question regarding 18-5 and 8-5?\",\"answer\":\"The question encourages students to identify numerical patterns, specifically that the result of 18-5 is 10 more than the result of 8-5.\"}]","Subtraction Up to 20 - Sheet 1 - Practice Exercise | PDF",1792681972]