[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-465548-105":59,"doc-detail-465548-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","solving-mixed-problems-find-the-missing-value-465548","Solving Mixed Problems (+ -) - Find the Missing Value","","Worksheets practice solving mixed addition and subtraction equations by finding an unknown value in each problem. Students complete number sentences such as 812 = 558 + ?, 796 = ? + 581, and equations with subtraction like ? = 952 - 171 and ? - 209 = 556. An answer key provides the missing values for problems 1 through 20, supporting self-check and review.",{"@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/solving-mixed-problems-find-the-missing-value-465548/465548/",{"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-the-missing-value-465548/465548.png","ImageObject",300,407,{"name":92,"@type":93},"Ivy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-17","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":52},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How do you solve each mixed problem on the worksheet?","Question",{"text":112,"@type":113},"Use inverse operations: for an addition equation, subtract the known addend to get the missing value; for a subtraction equation, combine appropriately using the known numbers.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Are subtraction problems included as well as addition?",{"text":117,"@type":113},"Yes. Some items use only subtraction (e.g., ? = 952-171) and others combine addition and subtraction in one equation.",{"name":119,"@type":110,"acceptedAnswer":120},"Where can students check their answers?",{"text":121,"@type":113},"The worksheet includes an “Answers” section that lists the missing values for problems 1 through 20.","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},465548,1790814510,{"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":52,"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":143,"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) 812 = 558 + ?  \n2) 796 = ? + 581  \n3) ? + 367 = 974  \n4) ? = 952-171  \n5) 791 + ? = 872  \n6) ? = 11 + 810  \n7) 30 + ? = 654  \n8) 410-149 = ?  \n9) 601 = 18 + ?  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \nAnswers  \n10) ? -367 = 370  \n11) 447 = ? + 292  \n12) 929 = 493 + ?  \n13) ? = 91 + 676  \n14) 476-390 = ?  \n15) 742 + 152 = ?  \n16) 947 = ? + 653  \n17) 821 = 901- ?  \n18) ? -380 = 130  \n19) 649 = 854- ?  \n20) ? -209 = 556  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n10  \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) 812 = 558 + ? |  | Answers\u003Cbr>1. 254 |\n| --- | --- | --- |\n| 2) 796 = ? + 581 |  | 2. 215 |\n| 3) ? + 367 = 974 |  | 3. 607 |\n| 4) | ? = 952-171 | 4. 781 |\n| 5) | 791 + ? = 872 | 5.  81  |\n| 6) | ? = 11 + 810 | 6. 821 |\n| 7) | 30 + ? = 654 | 7. 624 |\n| 8) | 410-149 = ? | 8. 261 |\n| 9) | 601 = 18 + ? | 9. 583 |\n| 10) | ? -367 = 370 | 10. 737 |\n| 11) | 447 = ? + 292 | 11. 155 |\n| 12) | 929 = 493 + ? | 12. 436 |\n| 13) | ? = 91 + 676 |  |\n| 14) | 476-390 = ? | 13.  767  |\n| 15) | 742 + 152 = ? | 14.  86  |\n| 16) | 947 = ? + 653 | 15.  894  |\n| 17) | 821 = 901- ? | 16.  294  |\n| 18) | ? -380 = 130 | 17.  80  |\n| 19) | 649 = 854- ? | 18.  510  |\n| 20) | ? -209 = 556 | 19.  205  20. 765 |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n10  \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.  \n583  \n821  \n215  \n1) 812 = 558 + ?  \n2) 796 = ? + 581  \n3) ? + 367 = 974  \n4) ? = 952-171  \n5) 791 + ? = 872  \n6) ? = 11 + 810  \n7) 30 + ? = 654  \n8) 410-149 = ?  \n9) 601 = 18 + ?  \n10) ? -367 = 370  \n11) 447 = ? + 292  \n12) 929 = 493 + ?  \n155  \n781  \n254  \n737  \n261  \n436  \n607  \n81  \n624  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n10  \n1-10 92  \n11-12 8  \n83  \n0  \n75 67 58 50 42 33 25 17","cbCaijHvvItjmG3X","https://ap.wps.com/l/cbCaijHvvItjmG3X","pdf",44051,"English","# Find the missing value in each of the problems","[{\"question\":\"How do you solve each mixed problem on the worksheet?\",\"answer\":\"Use inverse operations: for an addition equation, subtract the known addend to get the missing value; for a subtraction equation, combine appropriately using the known numbers.\"},{\"question\":\"Are subtraction problems included as well as addition?\",\"answer\":\"Yes. Some items use only subtraction (e.g., ? = 952-171) and others combine addition and subtraction in one equation.\"},{\"question\":\"Where can students check their answers?\",\"answer\":\"The worksheet includes an “Answers” section that lists the missing values for problems 1 through 20.\"}]","Solving Mixed Problems (+ -) - Find the Missing Value | PDF",1790769756]