International Mathematical 
The International Mathematical Talent Search (IMTS) was an extension of the USA Mathematical Talent Search (USAMTS), a yearround problemsolving program in mathematics. It was initiated in 1991 in the Mathematics and Informatics Quarterly (M&IQ), and was discontinued 10 years later, in 2001. During its 10 years of operation, each round of the IMTS featured 5 challenging problems for students at the secondary level; these problems are featured below as a service of the Canadian Mathematical Society. 
Problem Rounds [01]  [02]  [03]  [04]  [05]  [06]  [07]  [08]  [09]  [10] [11]  [12]  [13]  [14]  [15]  [16]  [17]  [18]  [19]  [20] [21]  [22]  [23]  [24]  [25]  [26]  [27]  [28]  [29]  [30] [31]  [32]  [33]  [34]  [35]  [36]  [37]  [38]  [39]  [40] [41]  [42]  [43]  [44] 

Notes: 
