[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-477855-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-477855-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","determining-reasonable-answer-answer-key-math","Determining Reasonable Answer - Answer Key - Math","","Worksheet answer key for determining whether a given multiplication answer is reasonable. It states number-ending rules: products of 2 must be even, products of 5 must end in 5 or 0, and products of 10 must end in 0. It then applies these checks to a set of multiplication problems, listing whether each displayed result is reasonable (yes) or not reasonable (no).",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/determining-reasonable-answer-answer-key-math/477855/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/determining-reasonable-answer-answer-key-math/477855.png","ImageObject",300,407,{"name":42,"@type":43},"supergirl","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-09-30",true,{"@type":52,"interactionType":53,"userInteractionCount":30},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What rule is used to check whether a product involving 2 is reasonable?","Question",{"text":62,"@type":63},"Any product times 2 must end in an even number.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How should products involving 5 be judged for reasonableness?",{"text":67,"@type":63},"Anything times 5 must end in either 5 or 0.",{"name":69,"@type":60,"acceptedAnswer":70},"What condition must products involving 10 satisfy?",{"text":71,"@type":63},"Anything times 10 must end in 0.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},477855,1792878235,{"code":4,"msg":81,"data":82},"success",[83,87,91,94,99,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":92,"slug":93},70,"exam",{"id":95,"doc_module":4,"doc_module_name":25,"category_name":96,"show_sort_weight":97,"slug":98},5,"Comic",60,"comic",{"id":100,"doc_module":4,"doc_module_name":25,"category_name":101,"show_sort_weight":102,"slug":103},6,"Technology",50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":95,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":30,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":30,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":143,"read_time":110},962088121634,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Determining  \nReasonable Answer  \nName:  \nDetermine if the answer shown is reasonable (yes) or not (no).  \nA2,n4,yt6,h8n0g) times 2 HAS to end in an even number Ex. 2 × 6 = 12 2 × 13 = 26 • Anything times 5 HAS to end in an either a 5 or a 0. Ex. 5 × 4 = 20 5 × 15 = 75  \n• Anything times 10 HAS to end in a 0. Ex. 10 × 7 = 70 10 × 16 = 160  \n1) 341 × 5 = 1,705 2) 768 × 10 = 7,680  \n3) 10 × 166 = 1,660 4) 2 × 126 = 253  \n5) 2 × 130 = 261 6) 2 × 692 = 1,385  \n7) 268 × 5 = 1,340 8) 10 × 535 = 5,355  \n9) 5 × 631 = 3,157 10) 404 × 2 = 809  \n11) 173 × 2 = 346 12) 394 × 5 = 1,970  \n13) 609 × 2 = 1,218 14) 2 × 660 = 1,320  \n15) 814 × 10 = 8,147 16) 536 × 2 = 1,072  \n17) 10 × 706 = 7,061 18) 10 × 906 = 9,065  \n19) 608 × 5 = 3,044 20) 106 × 10 = 1,060  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n4  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nDetermining  \nReasonable Answer  \nName: Answer Key  \nDetermine if the answer shown is reasonable (yes) or not (no).  \nA2,n4,yt6,h8n0g) times 2 HAS to end in an even number Ex. 2 × 6 = 12 2 × 13 = 26 • Anything times 5 HAS to end in an either a 5 or a 0. Ex. 5 × 4 = 20 5 × 15 = 75  \n• Anything times 10 HAS to end in a 0. Ex. 10 × 7 = 70 10 × 16 = 160  \n1) 341 × 5 = 1,705 2) 768 × 10 = 7,680  \n3) 10 × 166 = 1,660 4) 2 × 126 = 253  \n5) 2 × 130 = 261 6) 2 × 692 = 1,385  \n7) 268 × 5 = 1,340 8) 10 × 535 = 5,355  \n9) 5 × 631 = 3,157 10) 404 × 2 = 809  \n11) 173 × 2 = 346 12) 394 × 5 = 1,970  \n13) 609 × 2 = 1,218 14) 2 × 660 = 1,320  \n15) 814 × 10 = 8,147 16) 536 × 2 = 1,072  \n17) 10 × 706 = 7,061 18) 10 × 906 = 9,065  \n19) 608 × 5 = 3,044 20) 106 × 10 = 1,060  \nAnswers  \n1. yes  \n2. yes  \n3. yes  \n[4.](4. no)[ no](4. no)  \n[5.](5. no)[ no](5. no)  \n[6.](6. no)[ no](6. no)  \n7. yes  \n[8.](8. no)[ no](8. no)  \n[9.](9. no)[ no](9. no)  \n[10.](10. no)[ no](10. no)  \n11. yes  \n12. yes  \n13. yes  \n14. yes  \n[15.](15. no)[ no](15. no)  \n16. yes  \n[17.](17. no)[ no](17. no)  \n[18.](18. no)[ no](18. no)  \n[19.](19. no)[ no](19. no)  \n20. yes  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n4  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nDetermining  \nReasonable Answer  \nName:  \nDetermine if the answer shown is reasonable (yes) or not (no).  \nA2,n4,yt6,h8n0g) times 2 HAS to end in an even number Ex. 2 × 6 = 12 2 × 13 = 26 • Anything times 5 HAS to end in an either a 5 or a 0. Ex. 5 × 4 = 20 5 × 15 = 75  \n• Anything times 10 HAS to end in a 0. Ex. 10 × 7 = 70 10 × 16 = 160  \nno no no yes  \nyes yes no yes  \nyes no yes no  \n1) 341 × 5 = 1,705 2) 768 × 10 = 7,680  \n3) 10 × 166 = 1,660 4) 2 × 126 = 253  \n5) 2 × 130 = 261 6) 2 × 692 = 1,385  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n7) 268 × 5 = 1,340 8) 10 × 535 = 5,355  \n9) 5 × 631 = 3,157 10) 404 × 2 = 809  \n11) 173 × 2 = 346 12) 394 × 5 = 1,970  \nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n4  \n1-10 92  \n11-12 8  \n83  \n0  \n75 67 58 50 42 33 25 17","cbCaipqIrgKeEKFK","https://ap.wps.com/l/cbCaipqIrgKeEKFK","pdf",48319,"English","# Determining Reasonable Answer\n## Rules for Checking Products\n## Practice Problems (1–20)\n## Answers (Yes/No)","[{\"question\":\"What rule is used to check whether a product involving 2 is reasonable?\",\"answer\":\"Any product times 2 must end in an even number.\"},{\"question\":\"How should products involving 5 be judged for reasonableness?\",\"answer\":\"Anything times 5 must end in either 5 or 0.\"},{\"question\":\"What condition must products involving 10 satisfy?\",\"answer\":\"Anything times 10 must end in 0.\"}]","Determining Reasonable Answer - Answer Key - Math | PDF",1790790511]