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The document includes clear, step-by-step instructions for the process: circling the prime number 2 and crossing out its multiples, then iteratively repeating this logic for subsequent numbers. Additionally, the material features a designated answer key page, confirming the identification of the 25 prime numbers within this range. The content is crafted as a practical classroom worksheet, facilitating an interactive approach to mastering number theory fundamentals, specifically focused on primality testing and systematic elimination methods. The resource is highly suitable for elementary and middle school mathematics curricula, supporting teachers and students in building a solid foundation in arithmetic and number properties.",{"@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/sieve-of-eratosthenes-to-100-learning-activity/638070/",{"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/sieve-of-eratosthenes-to-100-learning-activity/638070.png","ImageObject",300,407,{"name":92,"@type":93},"hdkawk","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-22",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the Sieve of Eratosthenes?","Question",{"text":112,"@type":113},"It is an ancient algorithmic method for finding all prime numbers up to any given limit by iteratively crossing out the multiples of each prime number found.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How many prime numbers are there between 1 and 100?",{"text":117,"@type":113},"There are exactly 25 prime numbers between 1 and 100.",{"name":119,"@type":110,"acceptedAnswer":120},"What is the first step in the Sieve of Eratosthenes process?",{"text":121,"@type":113},"The first step is to start at the number 2, circle it, and then cross out all of its multiples.","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},638070,1792919438,{"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":19,"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":143,"read_time":24},3985747859855,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Name Date  \nSIEVE OF ERATOSTHENES TO 100  \n• Start at number 2. Put a circle round the number.  \n• Cross out all the multiples of that number.  \n• Move on to the next number you have not crossed out (3) . Put a circle round the number.  \n• Cross out all the multiples of that number.  \n• Move on to the next number not crossed out (5) . Repeat.  \n\n|  | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |\n| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |\n| 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |\n| 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 |\n| 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |\n| 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |\n| 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |\n| 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 |\n| 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |\n\nHow many prime numbers are there between 1 and 100?  \nName Date  \nSIEVE OF ERATOSTHENES TO 100 ANSWERS  \n• The numbers highlighted are all primes.  \n|  | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |\n| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |\n| 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |\n| 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 |\n| 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |\n| 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |\n| 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |\n| 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 |\n| 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |\n\nHow many prime numbers are there between 1 and 100? 25","cbCaiqECDt1ClkYJ","https://ap.wps.com/l/cbCaiqECDt1ClkYJ","pdf",157189,"English","# Sieve of Eratosthenes to 100\n## Instructions\n## Number Grid\n# Sieve of Eratosthenes to 100 Answers\n## Completed Number Grid\n## Prime Number Count","[{\"question\":\"What is the Sieve of Eratosthenes?\",\"answer\":\"It is an ancient algorithmic method for finding all prime numbers up to any given limit by iteratively crossing out the multiples of each prime number found.\"},{\"question\":\"How many prime numbers are there between 1 and 100?\",\"answer\":\"There are exactly 25 prime numbers between 1 and 100.\"},{\"question\":\"What is the first step in the Sieve of Eratosthenes process?\",\"answer\":\"The first step is to start at the number 2, circle it, and then cross out all of its multiples.\"}]","Sieve of Eratosthenes to 100 - Learning Activity | PDF",1792682057]