[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-545959-105":59,"doc-detail-545959-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-adding-whole-tens","Grade 4 Addition Worksheet - Adding Whole Tens","","This educational resource is a Grade 4 mathematics worksheet focused on developing mental math skills by adding four 2-digit numbers, specifically multiples of ten. The document provides twenty practice problems requiring students to find the sum of four-addend expressions. An answer key is included at the end to allow for self-assessment and verification of accuracy. This material is designed to reinforce fundamental arithmetic proficiency and computational fluency in young learners through repetitive practice 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-worksheet-adding-whole-tens/545959/",{"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-adding-whole-tens/545959.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":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the primary objective of this worksheet?","Question",{"text":112,"@type":113},"The worksheet aims to help fourth-grade students improve their mental math skills by practicing the addition of four 2-digit numbers that are multiples of ten.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How many addition problems are included in this document?",{"text":117,"@type":113},"There are twenty individual addition problems provided for students to solve.",{"name":119,"@type":110,"acceptedAnswer":120},"Is there a way to check the solutions to the problems?",{"text":121,"@type":113},"Yes, the document includes an answer key listing the correct sums for all twenty problems to facilitate self-checking and grading.","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},545959,1791775830,{"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":81,"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 whole tens  (four 2-digit addends)   \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 70 + 50 + 50 + 80 =   2. 60 + 30 + 80 + 50 =   3. 30 + 30 + 30 + 50 =   4. 10 + 30 + 30 + 70 =   5. 10 + 80 + 90 + 40 =   6. 80 + 10 + 80 + 20 =   7. 70 + 10 + 70 + 70 =   8. 60 + 30 + 80 + 90 =   9. 70 + 50 + 10 + 30 =   10. 60 + 40 + 90 + 30 =   11. 40 + 20 + 90 + 80 =   12. 70 + 20 + 60 + 80 =   13. 70 + 20 + 70 + 40 =   14. 80 + 60 + 70 + 60 =   15. 20 + 50 + 60 + 60 =   16. 10 + 70 + 50 + 70 =   17. 70 + 80 + 50 + 90 =   18. 40 + 40 + 90 + 20 =    \n19. 60 + 30 + 80 + 30 =   20. 80 + 90 + 10 + 50 =    \nMental math: adding whole tens  (four 2-digit addends)   \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 70 + 50 + 50 + 80 =  250  2. 60 + 30 + 80 + 50 =  220   \n3. 30 + 30 + 30 + 50 =  140  4. 10 + 30 + 30 + 70 =  140   \n5. 10 + 80 + 90 + 40 =  220  6. 80 + 10 + 80 + 20 =  190   \n7. 70 + 10 + 70 + 70 =  220  8. 60 + 30 + 80 + 90 =  260   \n9. 70 + 50 + 10 + 30 =  160  10. 60 + 40 + 90 + 30 =  220   \n11. 40 + 20 + 90 + 80 =  230  12. 70 + 20 + 60 + 80 =  230   \n13. 70 + 20 + 70 + 40 =  200  14. 80 + 60 + 70 + 60 =  270   \n15. 20 + 50 + 60 + 60 =  190  16. 10 + 70 + 50 + 70 =  200   \n17. 70 + 80 + 50 + 90 =  290  18. 40 + 40 + 90 + 20 =  190   \n19. 60 + 30 + 80 + 30 =  200  20. 80 + 90 + 10 + 50 =  230","cbCaipYerCBDZWhM","https://ap.wps.com/l/cbCaipYerCBDZWhM","pdf",13787,"English","# Mental Math Practice Problems\n## Answer Key","[{\"question\":\"What is the primary objective of this worksheet?\",\"answer\":\"The worksheet aims to help fourth-grade students improve their mental math skills by practicing the addition of four 2-digit numbers that are multiples of ten.\"},{\"question\":\"How many addition problems are included in this document?\",\"answer\":\"There are twenty individual addition problems provided for students to solve.\"},{\"question\":\"Is there a way to check the solutions to the problems?\",\"answer\":\"Yes, the document includes an answer key listing the correct sums for all twenty problems to facilitate self-checking and grading.\"}]","Grade 4 Addition Worksheet - Adding Whole Tens | PDF"]