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Students fill in missing values to make each statement true, covering problems such as 351 + 135, expressions with subtraction like 522 = ? - 410, and multi-step forms like 209 = 610 - ?. An answer key provides the final results for items 1 through 20, supporting quick checking of each completed equation.",{"@graph":69,"@context":123},[70,84,106],{"@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/solving-mixed-problems-find-missing-values/465561/",{"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/solving-mixed-problems-find-missing-values/465561.png","ImageObject",300,407,{"name":92,"@type":93},"Ivy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-16","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What skill does this worksheet assess?","Question",{"text":113,"@type":114},"It assesses the ability to solve arithmetic equations by finding missing values in mixed addition and subtraction problems.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How are the problems formatted?",{"text":118,"@type":114},"Each item is a number equation with one unknown shown as a question mark, such as 255 + ? = 722 or 617 - ? = 554.",{"name":120,"@type":111,"acceptedAnswer":121},"Is there an answer key included?",{"text":122,"@type":114},"Yes. The worksheet includes an answer key listing the completed results for problems 1 through 20.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},465561,1790819405,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":39},549758252649,"https://ap-avatar.wpscdn.com/avatar/8000253669c5317157?_k=1778319167496531819","Solving Mixed Problems (+ -)  \nName:  \nFind the missing value in each of the problems.  \n1) 351 + 135 = ?  \n2) 255 + ? = 722  \n3) 522 = ? -410  \n4) 971 = ? + 127  \n5) 362 + 585 = ?  \n6) 617- ? = 554  \n7) ? + 76 = 701  \n8) 922- ? = 4  \n9) ? + 16 = 992  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \nAnswers  \n10) 35 = ? -888  \n11) 209 = 610- ?  \n12) 922 = 472 + ?  \n13) 751 = 450 + ?  \n14) ? + 467 = 482  \n15) 121 = ? -308  \n16) 781 = 141 + ?  \n17) ? = 980 + 10  \n18) ? = 122 + 521  \n19) ? = 978-48  \n20) ? = 602-202  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n5  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nSolving Mixed Problems (+ -)  \nName: Answer Key  \n\n| Find the missing value in each of the problems.\u003Cbr>1) 351 + 135 = ? |  | Answers\u003Cbr>1. 486 |\n| --- | --- | --- |\n| 2) 255 + ? = 722 |  | 2. 467 |\n| 3) 522 = ? -410 |  | 3. 932 |\n| 4) | 971 = ? + 127 | 4. 844 |\n| 5) | 362 + 585 = ? | 5.  947  |\n| 6) | 617- ? = 554 | 6. 63 |\n| 7) | ? + 76 = 701 | 7. 625 |\n| 8) | 922- ? = 4 | 8. 918 |\n| 9) | ? + 16 = 992 | 9. 976 |\n| 10) | 35 = ? -888 | 10. 923 |\n| 11) | 209 = 610- ? | 11. 401 |\n| 12) | 922 = 472 + ? | 12. 450 |\n| 13) | 751 = 450 + ? |  |\n| 14) | ? + 467 = 482 | 13.  301  |\n| 15) | 121 = ? -308 | 14.  15  |\n| 16) | 781 = 141 + ? | 15.  429  |\n| 17) | ? = 980 + 10 | 16.  640  |\n| 18) | ? = 122 + 521 | 17.  990  |\n| 19) | ? = 978-48 | 18.  643  |\n| 20) | ? = 602-202 | 19.  930  20. 400 |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n5  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nSolving Mixed Problems (+ -)  \nName:  \nFind the missing value in each of the problems.  \n976  \n450  \n918  \n1) 351 + 135 = ?  \n2) 255 + ? = 722  \n3) 522 = ? -410  \n4) 971 = ? + 127  \n5) 362 + 585 = ?  \n6) 617- ? = 554  \n7) ? + 76 = 701  \n8) 922- ? = 4  \n9) ? + 16 = 992  \n10) 35 = ? -888  \n11) 209 = 610- ?  \n12) 922 = 472 + ?  \n923  \n486  \n932  \n63  \n625  \n401  \n467  \n947  \n844  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n5  \n1-10 92  \n11-12 8  \n83  \n0  \n75 67 58 50 42 33 25 17","cbCaijH9CtSUNb44","https://ap.wps.com/l/cbCaijH9CtSUNb44","pdf",44059,"English","# Solving Mixed Problems (+ -)\n## Find the missing value in each problem\n## Answers (1-20)","[{\"question\":\"What skill does this worksheet assess?\",\"answer\":\"It assesses the ability to solve arithmetic equations by finding missing values in mixed addition and subtraction problems.\"},{\"question\":\"How are the problems formatted?\",\"answer\":\"Each item is a number equation with one unknown shown as a question mark, such as 255 + ? = 722 or 617 - ? = 554.\"},{\"question\":\"Is there an answer key included?\",\"answer\":\"Yes. The worksheet includes an answer key listing the completed results for problems 1 through 20.\"}]","Solving Mixed Problems (+ -) - Find Missing Values | PDF",1790769767]