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The document provides 18 practice problems that require learners to calculate the missing values in equations, reinforcing their understanding of place value and addition properties. It includes a comprehensive answer key at the bottom, allowing students to check their work independently. This resource is an effective tool for reinforcing arithmetic proficiency and building number sense in young learners, suitable for classroom use or supplemental home practice. Its structured format encourages systematic problem-solving and self-assessment, which are essential for developing strong mathematical foundations during early primary education.",{"@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-2-addition-worksheet-adding-whole-tens-to-3-digit-numbers-missing-addend/548365/",{"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-2-addition-worksheet-adding-whole-tens-to-3-digit-numbers-missing-addend/548365.png","ImageObject",300,407,{"name":92,"@type":93},"\tCallum ","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","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 goal of this worksheet?","Question",{"text":112,"@type":113},"The goal is to practice adding whole tens to 3-digit numbers while solving for a missing addend.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How many practice problems are included?",{"text":117,"@type":113},"There are 18 practice problems provided in the worksheet.",{"name":119,"@type":110,"acceptedAnswer":120},"Is there an answer key provided?",{"text":121,"@type":113},"Yes, an answer key for all 18 problems is included at the end of 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},548365,1791781729,{"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},137451211410,"https://ap-avatar.wpscdn.com/avatar/2000bb0a9246f588df?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786362646172706240","Add a 3-digit number with whole tens – missing addend   \nGrade 2 Addition Worksheet  \nFind the missing numbers:  \n1) 643 +   = 693 2)   + 50 = 399 3) 159 +   = 179  \n4) 324 +   = 374 5) 142 +   = 182 6)   + 30 = 453  \n7) 133 +   = 143 8) 725 +   = 765 9) 631 +   = 681  \n10) 662 +   = 692 11)   + 10 = 288 12) 132 +   = 182  \n13)   + 20 = 289 14) 223 +   = 273 15)   + 30 = 159  \n16)   + 30 = 469 17)   + 20 = 790 18)   + 40 = 144  \nAnswers  \n1) 50 2) 349 3) 20  \n4) 50 5) 40 6) 423  \n7) 10 8) 40 9) 50  \n10) 30 11) 278 12) 50  \n13) 269 14) 50 15) 129  \n16) 439 17) 770 18) 104","cbCaigvTjQyU3bz1","https://ap.wps.com/l/cbCaigvTjQyU3bz1","pdf",27773,"English","# Grade 2 Addition Worksheet\n## Practice Problems\n## Answer Key","[{\"question\":\"What is the goal of this worksheet?\",\"answer\":\"The goal is to practice adding whole tens to 3-digit numbers while solving for a missing addend.\"},{\"question\":\"How many practice problems are included?\",\"answer\":\"There are 18 practice problems provided in the worksheet.\"},{\"question\":\"Is there an answer key provided?\",\"answer\":\"Yes, an answer key for all 18 problems is included at the end of the document.\"}]","Grade 2 Addition Worksheet - Adding Whole Tens to 3-Digit Numbers - Missing Addend | PDF"]