[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-545942-105":59,"doc-detail-545942-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-three-numbers","Grade 4 Addition Worksheet - Mental Math Adding Three Numbers","","This document provides a set of twenty mental math exercises specifically designed for fourth-grade students, focusing on the addition of three numbers that range from one to two digits. Each exercise presents a simple addition problem, such as calculating the sum of three integers. The primary purpose of this worksheet is to help students enhance their arithmetic fluency and mental calculation speed. The content includes a comprehensive answer key, allowing learners to check their work and track their progress effectively. These practice problems serve as an excellent resource for classroom activities, homework assignments, or supplementary home-based learning to reinforce fundamental mathematical skills. By repeatedly practicing these addition sequences, students can develop greater confidence and accuracy in performing mental computations, which is essential for building a strong foundation in elementary mathematics.",{"@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-three-numbers/545942/",{"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-three-numbers/545942.png","ImageObject",300,407,{"name":92,"@type":93},"Ezra","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-05","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the primary focus of these math exercises?","Question",{"text":112,"@type":113},"The primary focus is practicing mental math by adding three numbers, specifically combinations of one and two-digit integers.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Who is the target audience for this worksheet?",{"text":117,"@type":113},"The worksheet is designed for fourth-grade students as part of their elementary mathematics curriculum.",{"name":119,"@type":110,"acceptedAnswer":120},"Are the answers to the problems provided?",{"text":121,"@type":113},"Yes, the document includes a completed section that provides the sum for all twenty addition problems, serving as an answer key.","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},545942,1791775792,{"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":29,"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: adding three 1 and 2-digit numbers  \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 1 + 2 + 2 =   2. 60 + 55 + 7 =   3. 4 + 1 + 8 =   4. 6 + 97 + 8 =   5. 6 + 9 + 61 =   6. 5 + 2 + 55 =   7. 2 + 23 + 84 =   8. 32 + 6 + 97 =   9. 58 + 3 + 88 =   10. 2 + 45 + 53 =   11. 71 + 37 + 6 =   12. 4 + 67 + 41 =   13. 96 + 7 + 2 =   14. 92 + 35 + 3 =   15. 8 + 57 + 75 =   16. 72 + 52 + 8 =   17. 5 + 75 + 5 =   18. 3 + 90 + 8 =    \n19. 48 + 49 + 72 =   20. 62 + 64 + 47 =    \nOnline reading & math for K-5 © [www.k5learning.com](www.k5learning.com)  \nMental math: adding three 1 and 2-digit numbers  \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 1 + 2 + 2 =  5  2. 60 + 55 + 7 =  122   \n3. 4 + 1 + 8 =  13  4. 6 + 97 + 8 =  111   \n5. 6 + 9 + 61 =  76  6. 5 + 2 + 55 =  62   \n7. 2 + 23 + 84 =  109  8. 32 + 6 + 97 =  135   \n9. 58 + 3 + 88 =  149  10. 2 + 45 + 53 =  100   \n11. 71 + 37 + 6 =  114  12. 4 + 67 + 41 =  112   \n13. 96 + 7 + 2 =  105  14. 92 + 35 + 3 =  130   \n15. 8 + 57 + 75 =  140  16. 72 + 52 + 8 =  132   \n17. 5 + 75 + 5 =  85  18. 3 + 90 + 8 =  101   \n19. 48 + 49 + 72 =  169  20. 62 + 64 + 47 =  173","cbCaicFQvMG8ir57","https://ap.wps.com/l/cbCaicFQvMG8ir57","pdf",13765,"English","# Mental Math Practice\n## Problems 1-20\n## Answer Key","[{\"question\":\"What is the primary focus of these math exercises?\",\"answer\":\"The primary focus is practicing mental math by adding three numbers, specifically combinations of one and two-digit integers.\"},{\"question\":\"Who is the target audience for this worksheet?\",\"answer\":\"The worksheet is designed for fourth-grade students as part of their elementary mathematics curriculum.\"},{\"question\":\"Are the answers to the problems provided?\",\"answer\":\"Yes, the document includes a completed section that provides the sum for all twenty addition problems, serving as an answer key.\"}]","Grade 4 Addition Worksheet - Mental Math Adding Three Numbers | PDF"]