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Students complete equations such as 8 + 7 = ?, 3 = 4 - ?, and 15 = 7 + ? through direct arithmetic reasoning. The material includes a full answer key covering problems numbered 1 through 20, ensuring immediate verification of results and supporting self-checking during practice and assessment. CommonCoreSheets math format is used.",{"@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-answer-key/465518/",{"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-answer-key/465518.png","ImageObject",300,407,{"name":92,"@type":93},"Ivy","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 type of math problems are included in this worksheet?","Question",{"text":112,"@type":113},"Each problem is an equation with an unknown value, using addition and subtraction signs (+ and -).","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do you solve a problem like 3 = 4 - ?",{"text":117,"@type":113},"Rewrite the equation to isolate the missing number by subtracting from the given total to match 3.",{"name":119,"@type":110,"acceptedAnswer":120},"Where can the answers be found?",{"text":121,"@type":113},"The document includes an “Answer Key” listing 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},465518,1790769724,{"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},549758252649,"https://ap-avatar.wpscdn.com/avatar/8000253669c5317157?_k=1778319167496531819","Solving Mixed Problems (+ -)  \nName:  \nFind the missing value in each of the problems.  \n1) 8 + 7 = ?  \n2) 3 = 4- ?  \n3) ? = 7 + 2  \n4) 15 = 7 + ?  \n5) ? = 9-3  \n6) ? = 10-5  \n7) ? = 7-3  \n8) ? = 5 + 5  \n9) 7 = ? + 6  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \nAnswers  \n10) ? = 9 + 10  \n11) ? = 10 + 5  \n12) 1 = ? -3  \n13) 2 + ? = 11  \n14) ? = 11-1  \n15) 2 = ? -10  \n16) 5 = 6- ?  \n17) ? -6 = 1  \n18) ? = 9 + 8  \n19) 2 + ? = 8  \n20) 10 = ? + 8  \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  \nSolving Mixed Problems (+ -)  \nName: Answer Key  \n\n| Find the missing value in each of the problems.\u003Cbr>1) 8 + 7 = ? |  | Answers\u003Cbr>1. 15 |\n| --- | --- | --- |\n| 2) | 3 = 4- ? | 2. 1 |\n| 3) | ? = 7 + 2 | 3. 9 |\n| 4) | 15 = 7 + ? | 4. 8 |\n| 5) | ? = 9-3 | 5.  6  |\n| 6) | ? = 10-5 | 6. 5 |\n| 7) | ? = 7-3 | 7. 4 |\n| 8) | ? = 5 + 5 | 8. 10 |\n| 9) | 7 = ? + 6 | 9. 1 |\n| 10) | ? = 9 + 10 | 10. 19 |\n| 11) | ? = 10 + 5 | 11. 15 |\n| 12) | 1 = ? -3 | 12. 4 |\n| 13) | 2 + ? = 11 |  |\n| 14) | ? = 11-1 | 13.  9  |\n| 15) | 2 = ? -10 | 14.  10  |\n| 16) | 5 = 6- ? | 15.  12  |\n| 17) | ? -6 = 1 | 16.  1  |\n| 18) | ? = 9 + 8 | 17.  7  |\n| 19) | 2 + ? = 8 | 18.  17  |\n| 20) | 10 = ? + 8 | 19.  6  20. 2 |\n\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  \nSolving Mixed Problems (+ -)  \nName:  \n\n| Find the missing value in each of the problems. | 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.  \u003Cbr>13.  \u003Cbr>14.  \u003Cbr>15.   |\n| --- | --- |\n| \u003Cbr>4 10 10 5 8\u003Cbr>4 9 1 15 19\u003Cbr>1 15 12 6 9 |  |\n| 1) 8 + 7 = ?\u003Cbr>2) 3 = 4- ?\u003Cbr>3) ? = 7 + 2\u003Cbr>4) 15 = 7 + ?\u003Cbr>5) ? = 9-3\u003Cbr>6) ? = 10-5\u003Cbr>7) ? = 7-3\u003Cbr>8) ? = 5 + 5\u003Cbr>9) 7 = ? + 6\u003Cbr>10) ? = 9 + 10\u003Cbr>11) ? = 10 + 5\u003Cbr>12) 1 = ? -3\u003Cbr>13) 2 + ? = 11\u003Cbr>14) ? = 11-1\u003Cbr>15) 2 = ? -10 |  |\n\nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n3  \n1-10 11-15  \n\n| 93 | 87 | 80 | 73 | 67 | 60 | 53 | 47 | 40 | 33 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 27 | 20 | 13 | 7 | 0 |  |  |  |  |  |","cbCaiheDANDTGbCJ","https://ap.wps.com/l/cbCaiheDANDTGbCJ","pdf",43968,"English","# Find the missing value in each equation\n## Problems 1-10\n## Problems 11-20","[{\"question\":\"What type of math problems are included in this worksheet?\",\"answer\":\"Each problem is an equation with an unknown value, using addition and subtraction signs (+ and -).\"},{\"question\":\"How do you solve a problem like 3 = 4 - ?\",\"answer\":\"Rewrite the equation to isolate the missing number by subtracting from the given total to match 3.\"},{\"question\":\"Where can the answers be found?\",\"answer\":\"The document includes an “Answer Key” listing the missing values for problems 1 through 20.\"}]","Solving Mixed Problems (+ -) - Find the missing value - Answer Key | PDF"]