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The student section instructs learners to solve each given problem using simple vertical or inline calculations, including mixed addition and subtraction expressions. The document includes an Answer Key listing the computed results for each numbered item, supporting quick checking of responses and reinforcement of number sense within the 20 range.",{"@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/adding-and-subtracting-within-20-answer-key/464532/",{"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/adding-and-subtracting-within-20-answer-key/464532.png","ImageObject",300,407,{"name":92,"@type":93},"Olivia Brown","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the range of numbers used in these addition and subtraction problems?","Question",{"text":112,"@type":113},"The worksheet focuses on calculations within 20, using numbers from 0 up to 20.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What does the Answer Key provide?",{"text":117,"@type":113},"It lists the final answers for each numbered problem so students or teachers can verify results.",{"name":119,"@type":110,"acceptedAnswer":120},"How should problems be handled according to the worksheet instructions?",{"text":121,"@type":113},"Each item says to solve every problem, following the provided addition or subtraction expression.","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},464532,1790768314,{"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":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"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":129,"read_time":39},16904993612988,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","Adding and Subtracting within 20  \nName:  \nSolve each problem.  \n1) 2 0 2)- 1  \n5) 1 8 6)- 3  \n9) 2 0 10)  \n- 6  \n13) 8 14)  \n-3  \n17) 1 8 18)  \n- 7  \n1 4  \n+ 5  \n3  \n+ 2  \n1 8  \n+ 2  \n7  \n+ 4  \n1 0  \n+ 8  \n3) 6 -2  \n7) 1 9 - 2  \n11) 1 9 - 9  \n15) 1 4 - 3  \n19) 1 7 - 1  \n4)  \n8)  \n12)  \n16)  \n20)  \n5  \n+ 5  \n9  \n+ 8  \n1 3  \n+ 1  \n9  \n+ 1  \n1 3  \n+ 5  \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)  \n9  \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) 2 0 2)- 1  \n1 9  \n5) 1 8 6)- 3  \n1 5  \n9) 2 0 10)  \n- 6  \n1 4  \n13) 8 14)  \n-3  \n5  \n17) 1 8 18)  \n- 7  \n1 1  \n1 4 + 5  \n1 9  \n3  \n+ 2  \n5  \n1 8 + 2  \n2 0  \n7  \n+ 4  \n1 1  \n1 0 + 8  \n1 8  \n3) 6  \n-2  \n4  \n7) 1 9 - 2  \n1 7  \n11) 1 9  \n- 9  \n1 0  \n15) 1 4  \n- 3  \n1 1  \n19) 1 7  \n- 1  \n1 6  \n4)  \n8)  \n12)  \n16)  \n20)  \n5  \n+ 5  \n1 0  \n9  \n+ 8  \n1 7  \n1 3 + 1  \n1 4  \n9  \n+ 1  \n1 0  \n1 3 + 5  \n1 8  \nAnswers  \n1. 19 2. 19 3. 4 4. 10 5. 15 6. 5 7. 17 8. 17 9. 14 10. 20 11. 10 12. 14 13. 5 14. 11 15. 11 16. 10 17. 11 18. 18 19. 16  \n20. 18  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n9  \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:  \n\n| Solve each problem. |  |  |  |  |  |  |  |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.  \u003Cbr>4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.  \u003Cbr>8.  \u003Cbr>9.  \u003Cbr>10.  \u003Cbr>11.  \u003Cbr>12.   |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| \u003Cbr>17 10 20 17\u003Cbr>10 19 19 5\u003Cbr>4 15 14 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| 1) 2 0 2) 1 4 3) 6 4) 5\u003Cbr>- 1  + 5  -2   + 5 \u003Cbr>5) 1 8 6) 3 7) 1 9 8) 9\u003Cbr>- 3  + 2  - 2   + 8 \u003Cbr>9) 2 0 10) 1 8 11) 1 9 12) 1 3\u003Cbr>- 6  + 2  - 9  + 1  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| \u003Cbr>Math | Modified\u003Cbr>[www.CommonCoreSheets.com](www.CommonCoreSheets.com) | 9 | 1-10\u003Cbr>11-12 | 92 | 83 | 75 | 67 |  | 58 | 50 | 42 | 33 | 25 | 17 |\n|  |  |  |  | 8 | 0 |  |  |  |  |  |  |  |  |  |","cbCaioa48YKEsVSZ","https://ap.wps.com/l/cbCaioa48YKEsVSZ","pdf",46633,"English","# Solve Each Problem\n## Answer Key","[{\"question\":\"What is the range of numbers used in these addition and subtraction problems?\",\"answer\":\"The worksheet focuses on calculations within 20, using numbers from 0 up to 20.\"},{\"question\":\"What does the Answer Key provide?\",\"answer\":\"It lists the final answers for each numbered problem so students or teachers can verify results.\"},{\"question\":\"How should problems be handled according to the worksheet instructions?\",\"answer\":\"Each item says to solve every problem, following the provided addition or subtraction expression.\"}]","Adding and Subtracting within 20 - Answer Key | PDF"]