[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-545973-105":59,"doc-detail-545973-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","grade-4-addition-mental-math-missing-numbers","Grade 4 Addition - Mental Math Missing Numbers","","This Grade 4 addition worksheet focuses on developing mental math skills by challenging students to find missing numbers in various addition equations. The document provides twenty problems designed to improve arithmetic fluency, specifically dealing with sums under 1,000. Each equation requires learners to identify either an addend or a sum, facilitating a deeper understanding of additive relationships. The resource is structured as a clear, instructional assessment tool suitable for classroom practice or home-based review, helping students gain confidence and speed in solving basic math operations accurately and efficiently. The inclusion of an answer key ensures that students can independently verify their calculations and track their progress through the exercises.",{"@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/grade-4-addition-mental-math-missing-numbers/545973/",{"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/grade-4-addition-mental-math-missing-numbers/545973.png","ImageObject",300,407,{"name":92,"@type":93},"Ezra","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-06","2026-10-12",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 goal of this worksheet?","Question",{"text":112,"@type":113},"The worksheet aims to help Grade 4 students practice mental math by finding missing numbers in addition equations.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is the range of the numbers used in these problems?",{"text":117,"@type":113},"The problems are designed to result in sums typically around or under 1,000.",{"name":119,"@type":110,"acceptedAnswer":120},"How many problems are included in the worksheet?",{"text":121,"@type":113},"There are twenty distinct addition problems provided in the document.","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},545973,1791775864,{"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":14,"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":24,"preview_page_count":4},1099514068035,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Mental math: missing numbers  \n (sum under 1,000)   \nGrade 4 Addition Worksheet  \nFind the missing number. 1. 24 +   = 280  \n3. 8 +   = 481  \n5. 84 + 938 =   7. 71 + 953 =   9. 78 + 933 =    \n11. 59 + 783 =   13. 69 +   = 853  \n15. 12 +   = 399  \n17. 59 + 27 =    \n19. 4 + 562 =    \n2. 41 + 264 =   4. 98 + 975 =    \n6. 6 + 434 =   8. 94 +   = 900  \n10.   + 466 = 525  \n12. 76 +   = 1,034  \n14. 82 +   = 1,013  \n16. 85 +   = 1,028  \n18.   + 727 = 762  \n20.   + 511 = 605  \nMental math: missing numbers  \n (sum under 1,000)   \nGrade 4 Addition Worksheet  \nFind the missing number.  \n1. 24 +  256  = 280 2. 41 + 264 =  305   \n3. 8 +  473  = 481 4. 98 + 975 =  1,073   \n5. 84 + 938 =  1,022  6. 6 + 434 =  440   \n7. 71 + 953 =  1,024  8. 94 +  806  = 900  \n9. 78 + 933 =  1,011  10.  59  + 466 = 525  \n11. 59 + 783 =  842  12. 76 +  958  = 1,034  \n13. 69 +  784  = 853 14. 82 +  931  = 1,013  \n15. 12 +  387  = 399 16. 85 +  943  = 1,028  \n17. 59 + 27 =  86  18.  35  + 727 = 762  \n19. 4 + 562 =  566  20.  94  + 511 = 605","cbCaipW2wBFglJaG","https://ap.wps.com/l/cbCaipW2wBFglJaG","pdf",13486,"English","# Addition Exercises\n## Answer Key","[{\"question\":\"What is the goal of this worksheet?\",\"answer\":\"The worksheet aims to help Grade 4 students practice mental math by finding missing numbers in addition equations.\"},{\"question\":\"What is the range of the numbers used in these problems?\",\"answer\":\"The problems are designed to result in sums typically around or under 1,000.\"},{\"question\":\"How many problems are included in the worksheet?\",\"answer\":\"There are twenty distinct addition problems provided in the document.\"}]","Grade 4 Addition - Mental Math Missing Numbers | PDF"]