[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-545854-105":59,"doc-detail-545854-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-worksheet-mental-math-adding-two-2-digit-numbers","Grade 4 Addition Worksheet - Mental Math: Adding Two 2-Digit Numbers","","This Grade 4 mathematics resource provides a focused practice worksheet for students to enhance their mental math skills through addition of two-digit numbers. The document consists of two pages: the first presents a set of 20 arithmetic problems designed for rapid mental calculation, and the second provides the corresponding answer key. It serves as an effective learning aid for developing computational fluency, improving speed, and strengthening number sense in young learners within a structured educational format.",{"@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-worksheet-mental-math-adding-two-2-digit-numbers/545854/",{"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-worksheet-mental-math-adding-two-2-digit-numbers/545854.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the target grade level for these mental math worksheets?","Question",{"text":112,"@type":113},"These worksheets are specifically designed for students in Grade 4.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What type of math problems are covered in this document?",{"text":117,"@type":113},"The document focuses on addition, specifically mental math problems involving the addition of two-digit numbers.",{"name":119,"@type":110,"acceptedAnswer":120},"How many practice problems are provided in this worksheet?",{"text":121,"@type":113},"There are 20 addition problems included for students to solve.","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},545854,1791775613,{"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":14,"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},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Mental math: adding two 2-digit numbers   \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 94 + 9 =   2. 16 + 7 =   3. 46 + 89 =   4. 88 + 55 =   5. 31 + 8 =   6. 71 + 31 =   7. 16 + 86 =   8. 57 + 46 =   9. 3 + 81 =   10. 46 + 78 =   11. 68 + 22 =   12. 21 + 48 =   13. 61 + 74 =   14. 87 + 68 =   15. 41 + 26 =   16. 70 + 17 =   17. 9 + 76 =   18. 78 + 95 =    \n19. 1 + 15 =   20. 14 + 76 =    \nMental math: adding two 2-digit numbers   \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 94 + 9 =  103  2. 16 + 7 =  23   \n3. 46 + 89 =  135  4. 88 + 55 =  143   \n5. 31 + 8 =  39  6. 71 + 31 =  102   \n7. 16 + 86 =  102  8. 57 + 46 =  103   \n9. 3 + 81 =  84  10. 46 + 78 =  124   \n11. 68 + 22 =  90  12. 21 + 48 =  69   \n13. 61 + 74 =  135  14. 87 + 68 =  155   \n15. 41 + 26 =  67  16. 70 + 17 =  87   \n17. 9 + 76 =  85  18. 78 + 95 =  173   \n19. 1 + 15 =  16  20. 14 + 76 =  90","cbCaik3caJwnzz44","https://ap.wps.com/l/cbCaik3caJwnzz44","pdf",12952,"English","# Mental Math Addition Practice\n## Addition Problem Set\n## Answer Key","[{\"question\":\"What is the target grade level for these mental math worksheets?\",\"answer\":\"These worksheets are specifically designed for students in Grade 4.\"},{\"question\":\"What type of math problems are covered in this document?\",\"answer\":\"The document focuses on addition, specifically mental math problems involving the addition of two-digit numbers.\"},{\"question\":\"How many practice problems are provided in this worksheet?\",\"answer\":\"There are 20 addition problems included for students to solve.\"}]","Grade 4 Addition Worksheet - Mental Math: Adding Two 2-Digit Numbers | PDF"]