[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-477850-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-477850-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","Determining Reasonable Answer - Answer Key","","Math answer key for a worksheet titled \"Determining Reasonable Answer\" that checks whether given multiplication answers are reasonable. It states rules: products of numbers ending in certain patterns must satisfy evenness for times 2, must end in 5 or 0 for times 5, and must end in 0 for times 10. The document lists 20 multiplication problems and marks each response as yes or no using the stated ending-number constraints.",{"@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/477850/",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/477850.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 does “Determining Reasonable Answer” mean in this worksheet?","Question",{"text":62,"@type":63},"It means deciding whether the shown multiplication answer is reasonable (yes) or not (no) using end-number rules.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What rule applies to problems “times 2”?",{"text":67,"@type":63},"The product must end in an even number.",{"name":69,"@type":60,"acceptedAnswer":70},"What ending rules apply to “times 5” and “times 10”?",{"text":71,"@type":63},"Times 5 must end in 5 or 0, and 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},477850,1793069595,{"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) 828 × 2 = 1,656 2) 953 × 2 = 1,906  \n3) 706 × 5 = 3,534 4) 5 × 862 = 4,312  \n5) 350 × 5 = 1,752 6) 10 × 488 = 4,881  \n7) 543 × 2 = 1,087 8) 387 × 2 = 774  \n9) 10 × 702 = 7,020 10) 5 × 244 = 1,220  \n11) 848 × 5 = 4,240 12) 2 × 673 = 1,347  \n13) 5 × 190 = 950 14) 284 × 5 = 1,420  \n15) 364 × 10 = 3,642 16) 2 × 312 = 624  \n17) 830 × 10 = 8,300 18) 10 × 229 = 2,298  \n19) 748 × 5 = 3,744 20) 10 × 961 = 9,610  \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)  \n10  \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) 828 × 2 = 1,656 2) 953 × 2 = 1,906  \n3) 706 × 5 = 3,534 4) 5 × 862 = 4,312  \n5) 350 × 5 = 1,752 6) 10 × 488 = 4,881  \n7) 543 × 2 = 1,087 8) 387 × 2 = 774  \n9) 10 × 702 = 7,020 10) 5 × 244 = 1,220  \n11) 848 × 5 = 4,240 12) 2 × 673 = 1,347  \n13) 5 × 190 = 950 14) 284 × 5 = 1,420  \n15) 364 × 10 = 3,642 16) 2 × 312 = 624  \n17) 830 × 10 = 8,300 18) 10 × 229 = 2,298  \n19) 748 × 5 = 3,744 20) 10 × 961 = 9,610  \nAnswers  \n1. yes  \n2. yes  \n[3.](3. no)[ no](3. no)  \n[4.](4. no)[ no](4. no)  \n[5.](5. no)[ no](5. no)  \n[6.](6. no)[ no](6. no)  \n[7.](7. no)[ no](7. no)  \n8. yes  \n9. yes  \n10. yes  \n11. yes  \n[12.](12. no)[ no](12. no)  \n13. yes  \n14. yes  \n[15.](15. no)[ no](15. no)  \n16. yes  \n17. yes  \n[18.](18. no)[ no](18. no)  \n[19.](19. no)[ no](19. no)  \n20. yes  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n10  \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  \nyes no no yes  \nyes yes no yes  \nno no yes no  \n1) 828 × 2 = 1,656 2) 953 × 2 = 1,906  \n3) 706 × 5 = 3,534 4) 5 × 862 = 4,312  \n5) 350 × 5 = 1,752 6) 10 × 488 = 4,881  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n7) 543 × 2 = 1,087 8) 387 × 2 = 774  \n9) 10 × 702 = 7,020 10) 5 × 244 = 1,220  \n11) 848 × 5 = 4,240 12) 2 × 673 = 1,347  \nMath  \nModified  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n10  \n1-10 92  \n11-12 8  \n83  \n0  \n75 67 58 50 42 33 25 17","cbCaimFJSUhH6SFA","https://ap.wps.com/l/cbCaimFJSUhH6SFA","pdf",48318,"English","# Determine if the answer is reasonable\n## Rules for times 2, times 5, and times 10\n## Practice problems 1-20\n## Answer key (yes/no)","[{\"question\":\"What does “Determining Reasonable Answer” mean in this worksheet?\",\"answer\":\"It means deciding whether the shown multiplication answer is reasonable (yes) or not (no) using end-number rules.\"},{\"question\":\"What rule applies to problems “times 2”?\",\"answer\":\"The product must end in an even number.\"},{\"question\":\"What ending rules apply to “times 5” and “times 10”?\",\"answer\":\"Times 5 must end in 5 or 0, and times 10 must end in 0.\"}]","Determining Reasonable Answer - Answer Key | PDF",1790790501]