英国小学56年级PMC:
https://www.primarymathschallenge.org.uk/downloads
英国8年级以下JMC:
https://www.ukmt.org.uk/competitions/solo/junior-mathematical-challenge/archive
英国8年级以下Junior Kangaroo
https://www.ukmt.org.uk/competitions/solo/junior-kangaroo/archive
英国8年级以下JMO
https://www.ukmt.org.uk/competitions/solo/junior-mathematical-olympiad/archive
美国 AMC
18 Sets of Past Official AMC 8 Tests with Answer Keys
https://artofproblemsolving.com/wiki/index.php/AMC_8_Problems_and_Solutions
加拿大
https://www.cemc.uwaterloo.ca/contests/past_contests.html