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The document includes both the problem set and a corresponding answer key for self-assessment, serving as an effective supplementary resource for classroom practice or home-based tutoring to strengthen foundational arithmetic skills.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/adding-and-subtracting-within-20-math-worksheet/464545/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/adding-and-subtracting-within-20-math-worksheet/464545.png","ImageObject",300,407,{"name":42,"@type":43},"Olivia Brown","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-09-30",true,{"@type":52,"interactionType":53,"userInteractionCount":22},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is the primary focus of this worksheet?","Question",{"text":62,"@type":63},"The worksheet focuses on practicing addition and subtraction problems involving numbers up to 20.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"Does the document include solutions?",{"text":67,"@type":63},"Yes, the document includes an answer key provided for all twenty problems to allow for easy verification of student work.",{"name":69,"@type":60,"acceptedAnswer":70},"Who is the target audience for these math problems?",{"text":71,"@type":63},"This worksheet is designed for elementary school students who are developing their foundational skills in basic arithmetic operations.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},464545,1790768330,{"code":4,"msg":81,"data":82},"success",[83,87,91,94,99,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":92,"slug":93},70,"exam",{"id":95,"doc_module":4,"doc_module_name":25,"category_name":96,"show_sort_weight":97,"slug":98},5,"Comic",60,"comic",{"id":100,"doc_module":4,"doc_module_name":25,"category_name":101,"show_sort_weight":102,"slug":103},6,"Technology",50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":95,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":22,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":30,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":79,"read_time":110},16904993612988,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","Adding and Subtracting within 20  \nName:  \nSolve each problem.  \n1) 1 1 2)- 2  \n5) 5 6)-1  \n9) 1 0 10)  \n- 2  \n13) 1 2 14)  \n- 5  \n17) 2 0 18)  \n- 9  \n1 6 + 1  \n1 5 + 5  \n1 1 + 7  \n7  \n+ 4  \n1 7  \n+ 2  \n3) 8 -2  \n7) 1 8 - 3  \n11) 1 3 - 2  \n15) 2 0 -1 0  \n19) 1 6  \n- 1  \n4) 1 4 + 6  \n8) 1 2 + 1  \n12) 1 2 + 4  \n16) 1 4 + 3  \n20) 6 + 4  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n3  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nAdding and Subtracting within 20  \nName: Answer Key  \nSolve each problem.  \n1) 1 1 2)  \n- 2  \n9  \n5) 5 6)  \n-1  \n4  \n9) 1 0 10)  \n- 2  \n8  \n13) 1 2 14)  \n- 5  \n7  \n17) 2 0 18)  \n- 9  \n1 1  \n1 6 + 1  \n1 7  \n1 5 + 5  \n2 0  \n1 1 + 7  \n1 8  \n7  \n+ 4  \n1 1  \n1 7 + 2  \n1 9  \n3) 8  \n-2  \n6  \n7) 1 8 - 3  \n1 5  \n11) 1 3  \n- 2  \n1 1  \n15) 2 0  \n-1 0  \n1 0  \n19) 1 6  \n- 1  \n1 5  \n4) 1 4 + 6  \n2 0  \n8) 1 2  \n+ 1  \n1 3  \n12) 1 2  \n+ 4  \n1 6  \n16) 1 4  \n+ 3  \n1 7  \n20)  \n6  \n+ 4  \n1 0  \nAnswers  \n1. 9 2. 17 3. 6 4. 20 5. 4 6. 20 7. 15 8. 13 9. 8 10. 18 11. 11 12. 16 13. 7 14. 11 15. 10 16. 17 17. 11 18. 19 19. 15  \n20. 10  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n3  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nAdding and Subtracting within 20  \nName:  \nSolve each problem. Answers  \n11 18 15 8  \n16 17 20 6 1.  \n4 9 13 20  \n2.  \n1) 1 1 2) 1 6 3) 8 4) 1 4 3.  \n- 2 + 1 -2 + 6  \n4.  \n5.  \n6.  \n7.  \n8.  \n5) 5 6) 1 5 7) 1 8 8) 1 2  \n9.  \n-1 + 5 - 3 + 1  \n10.  \n11.  \n12.  \n9) 1 0 10) 1 1 11) 1 3 12) 1 2  \n- 2 + 7 - 2 + 4  \nMath www. CoMommi[eSheets.com](eSheets.com 3 111--1102)[ 3](eSheets.com 3 111--1102)[ 111--1102](eSheets.com 3 111--1102) 92 838 0 75 67 58 50 42 33 25 17","cbCaicMNtuIpYvIP","https://ap.wps.com/l/cbCaicMNtuIpYvIP","pdf",46703,"English","# Addition and Subtraction Practice Problems\n## Answer Key","[{\"question\":\"What is the primary focus of this worksheet?\",\"answer\":\"The worksheet focuses on practicing addition and subtraction problems involving numbers up to 20.\"},{\"question\":\"Does the document include solutions?\",\"answer\":\"Yes, the document includes an answer key provided for all twenty problems to allow for easy verification of student work.\"},{\"question\":\"Who is the target audience for these math problems?\",\"answer\":\"This worksheet is designed for elementary school students who are developing their foundational skills in basic arithmetic operations.\"}]","Adding and Subtracting within 20 - Math Worksheet | PDF"]