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The content covers basic single and double-digit operations, serving as a structured math drill to improve foundational numerical fluency and calculation speed for learners mastering addition and subtraction concepts.",{"@graph":14,"@context":73},[15,34,56],{"@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/464542/",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/464542.png","ImageObject",300,407,{"name":42,"@type":43},"Olivia Brown","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-01","2026-09-30",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",7,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What is the primary focus of this worksheet?","Question",{"text":63,"@type":64},"The worksheet focuses on practicing addition and subtraction problems with numbers up to 20.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How many problems are included in the exercise set?",{"text":68,"@type":64},"There are 20 individual problems provided for students to solve.",{"name":70,"@type":61,"acceptedAnswer":71},"Does the document provide the solutions?",{"text":72,"@type":64},"Yes, the document includes a dedicated 'Answer Key' section that displays the correct results for all 20 problems.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},464542,1790768327,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":93,"slug":94},70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},"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":96,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"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":55,"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":80,"read_time":110},16904993612988,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","Adding and Subtracting within 20  \nName:  \nSolve each problem.  \n1) 1 5 2)- 4  \n5) 1 8 6)- 5  \n9) 1 3 10)  \n- 2  \n13) 1 6 14)  \n- 5  \n17) 1 9 18)  \n- 7  \n1 8 + 1  \n1 9 + 1  \n1 5 + 1  \n1 0 + 2  \n5  \n+ 3  \n3) 1 8 - 1  \n7) 1 8 - 8  \n11) 9 -1  \n15) 9 -3  \n19) 1 1 - 5  \n4) 8 + 2  \n8) 1 1 + 1  \n12) 1 2 + 8  \n16) 1 7 + 3  \n20) 1 2 + 1  \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)  \n2  \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 5 2)- 4  \n1 1  \n5) 1 8 6)- 5  \n1 3  \n9) 1 3 10)  \n- 2  \n1 1  \n13) 1 6 14)  \n- 5  \n1 1  \n17) 1 9 18)  \n- 7  \n1 2  \n1 8 + 1  \n1 9  \n1 9 + 1  \n2 0  \n1 5 + 1  \n1 6  \n1 0 + 2  \n1 2  \n5  \n+ 3  \n8  \n3) 1 8 - 1  \n1 7  \n7) 1 8  \n- 8  \n1 0  \n11) 9  \n-1  \n8  \n15) 9  \n-3  \n6  \n19) 1 1  \n- 5  \n6  \n4)  \n8  \n+ 2  \n1 0  \n8) 1 1 + 1  \n1 2  \n12) 1 2  \n+ 8  \n2 0  \n16) 1 7  \n+ 3  \n2 0  \n20) 1 2  \n+ 1  \n1 3  \nAnswers  \n1. 11 2. 19 3. 17 4. 10 5. 13 6. 20 7. 10 8. 12 9. 11 10. 16 11. 8 12. 20 13. 11 14. 12 15. 6 16. 20 17. 12 18. 8 19. 6  \n20. 13  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n2  \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  \n20 8 10 20  \n11 10 16 13 1.  \n19 11 17 12  \n2.  \n1) 1 5 2) 1 8 3) 1 8 4) 8 3.  \n- 4 + 1 - 1 + 2  \n4.  \n5.  \n6.  \n7.  \n8.  \n5) 1 8 6) 1 9 7) 1 8 8) 1 1  \n9.  \n- 5 + 1 - 8 + 1  \n10.  \n11.  \n12.  \n9) 1 3 10) 1 5 11) 9 12) 1 2  \n- 2 + 1 -1 + 8  \nMath www. CoMommi[eSheets.com](eSheets.com 2 111--1102)[ 2](eSheets.com 2 111--1102)[ 111--1102](eSheets.com 2 111--1102) 92 838 0 75 67 58 50 42 33 25 17","cbCaimbsbKc6HVrH","https://ap.wps.com/l/cbCaimbsbKc6HVrH","pdf",46643,"English","# Math Exercises\n## Problem Set\n## Answer Key","[{\"question\":\"What is the primary focus of this worksheet?\",\"answer\":\"The worksheet focuses on practicing addition and subtraction problems with numbers up to 20.\"},{\"question\":\"How many problems are included in the exercise set?\",\"answer\":\"There are 20 individual problems provided for students to solve.\"},{\"question\":\"Does the document provide the solutions?\",\"answer\":\"Yes, the document includes a dedicated 'Answer Key' section that displays the correct results for all 20 problems.\"}]","Adding and Subtracting within 20 - Math Worksheet | PDF"]