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The document presents sixteen unique arithmetic problems, structured in both horizontal and vertical column formats to reinforce multidigit addition skills. Each problem requires the student to find the sum of three distinct three-digit integers, fostering fluency in carrying and column-based calculation. By providing a varied set of exercises, this worksheet serves as an effective tool for classroom instruction, homework assignments, or remedial learning, supporting the mastery of foundational arithmetic operations essential for elementary school curricula. The inclusion of a comprehensive answer key allows for immediate self-assessment and verification of accuracy by both students and educators, ensuring targeted practice for developing mathematical proficiency in young learners.","Adding three 3-digit numbers in columns   \nGrade 2 Addition Worksheet  \nFind the sum.  \n1) 118 718 + 196  \n5) 538 694 + 936  \n9) 232 440 + 207  \n13) 403 372 + 280  \n2) 633  \n745  \n+ 853  \n6) 818 594 + 230  \n10) 153 931 + 955  \n14) 703 571 + 35  \n3) 433 665 + 853  \n7) 784  \n214 + 211  \n11) 566 974  \n+ 411  \n15) 772  \n24  \n+ 631  \n4) 170  \n14  \n+ 863  \n8) 72  \n317 + 767  \n12) 566 69 + 685  \n16) 349 406 + 401  \nAdding three 3-digit numbers in columns   \nGrade 2 Addition Worksheet  \nFind the sum.  \n1) 118 718 + 196  \n 1,032  \n5) 538 694 + 936  \n 2,168  \n9) 232 440 + 207 879  \n13) 403 372 + 280  \n 1,055  \n2) 633  \n745  \n+ 853  \n 2,231  \n6) 818 594 + 230  \n 1,642  \n10) 153 931 + 955  \n 2,039  \n14) 703 571 + 35  \n 1,309  \n3) 433 665 + 853  \n 1,951  \n7) 784  \n214 + 211  \n 1,209  \n11) 566 974  \n+ 411  \n 1,951  \n15) 772  \n24  \n+ 631  \n 1,427  \n4) 170  \n14  \n+ 863  \n 1,047  \n8) 72  \n317 + 767  \n 1,156  \n12) 566 69 + 685  \n 1,320  \n16) 349 406 + 401  \n 1,156","cbCaivigk9ObrTP3","https://ap.wps.com/l/cbCaivigk9ObrTP3","pdf",13703,"English","en",105,"# Addition Exercises\n## Answer Key","[{\"question\":\"What is the target audience for this worksheet?\",\"answer\":\"This worksheet is designed for Grade 2 students who are learning to perform column-based addition with three 3-digit numbers.\"},{\"question\":\"How many addition problems are included in the document?\",\"answer\":\"The document contains 16 distinct math problems that require students to find the sum of three numbers.\"},{\"question\":\"Does the document include solutions?\",\"answer\":\"Yes, the document provides a complete set of answers for all 16 arithmetic problems to facilitate checking and self-correction.\"}]","Grade 2 Math - Adding Three 3-Digit Numbers - Practice Worksheet | PDF",1791777194,{"code":4,"msg":80,"data":81},"ok",{"site_id":74,"language":73,"slug":82,"title":65,"keywords":83,"description":66,"schema_data":84,"social_meta":138,"head_meta":140,"extra_data":142,"updated_unix":78},"grade-2-math-adding-three-3-digit-numbers-practice-worksheet","",{"@graph":85,"@context":137},[86,100,120],{"@type":87,"itemListElement":88},"BreadcrumbList",[89,93,95,98],{"item":90,"name":91,"@type":92,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":94,"name":9,"@type":92,"position":14},"https://docshare.wps.com/document/",{"item":96,"name":20,"@type":92,"position":97},"https://docshare.wps.com/document/exam/",3,{"item":99,"name":65,"@type":92,"position":19},"https://docshare.wps.com/document/grade-2-math-adding-three-3-digit-numbers-practice-worksheet/546497/",{"url":99,"name":65,"@type":101,"image":102,"author":107,"headline":65,"publisher":109,"fileFormat":112,"inLanguage":73,"description":66,"dateModified":113,"datePublished":114,"encodingFormat":112,"isAccessibleForFree":115,"interactionStatistic":116},"DigitalDocument",{"url":103,"@type":104,"width":105,"height":106},"https://docshare.wps.com/thumbnails/grade-2-math-adding-three-3-digit-numbers-practice-worksheet/546497.png","ImageObject",300,407,{"name":63,"@type":108},"Person",{"url":90,"name":110,"@type":111},"DocShare","Organization","application/pdf","2026-11-04","2026-10-12",true,{"@type":117,"interactionType":118,"userInteractionCount":19},"InteractionCounter",{"@type":119},"ViewAction",{"@type":121,"mainEntity":122},"FAQPage",[123,129,133],{"name":124,"@type":125,"acceptedAnswer":126},"What is the target audience for this worksheet?","Question",{"text":127,"@type":128},"This worksheet is designed for Grade 2 students who are learning to perform column-based addition with three 3-digit numbers.","Answer",{"name":130,"@type":125,"acceptedAnswer":131},"How many addition problems are included in the document?",{"text":132,"@type":128},"The document contains 16 distinct math problems that require students to find the sum of three numbers.",{"name":134,"@type":125,"acceptedAnswer":135},"Does the document include solutions?",{"text":136,"@type":128},"Yes, the document provides a complete set of answers for all 16 arithmetic problems to facilitate checking and self-correction.","https://schema.org",{"og:url":99,"og:type":139,"og:title":65,"og:site_name":110,"og:description":66},"article",{"robots":141,"canonical":99},"index,follow",{"doc_id":61,"site_id":74}]