Skip to main content

Primary Math Olympiads

Five popular contests, one path each: syllabus-based paper structure, leveled practice, real papers to test on, progress tracked. The table below shows which grades are open.

⚠️ These "grade 1" papers use grade 2–3 knowledge (carrying, odd/even, multiplication, symmetry). Every topic teaches the missing parts first.

Which grade can start?

Find your child’s grade column, then click "Open". "Coming later" means the content is still being written.

Which contests have a path open for which grade
ContestGr. 1Gr. 2Gr. 3Gr. 4Gr. 5
Olympic Toán học quốc tế TIMOOpenComing laterComing laterComing laterComing later
Olympic Toán học châu Á ASMOOpenComing laterComing laterComing laterComing later
Olympic Toán học quốc tế Hong Kong HKIMOOpenComing laterComing laterComing laterComing later
Kỳ thi Toán quốc tế Kangaroo IKMCOpenComing laterComing laterComing laterComing later
Olympic Toán Singapore và châu Á SASMOOpenComing laterComing laterComing laterComing later
  • Open — the path has content — click to start.
  • Not offered — the organizer does not accept this grade; grade 1 children can still use the preparation path.
  • Coming later — ClassBk has not finished the content for this grade. We do not open empty pages.

2026–2027 exam dates and countdown

Dates come from organizer sites with a verification date. Unannounced seasons are marked "expected" with no countdown.

🌏 Olympic Toán học châu Á ASMO

Asian Science & Mathematics Olympiad · season 2026-27

19

days

Vòng quốc gia · 2026-11-22

  • ✓ Vòng khu vực2026-09-27
  • Vòng quốc gia2026-11-22
  • Vòng quốc tếTBA
Official site ↗

🏆 Olympic Toán học quốc tế TIMO

Thailand International Mathematical Olympiad · season 2026-27

33

days

Chung kết quốc gia · 2026-12-06

Registration deadline: 2026-11-04 · 1 days left

  • ✓ Vòng loại2026-10-10
  • Chung kết quốc gia2026-12-06
  • Chung kết quốc tếTBA
Official site ↗

🏵️ Olympic Toán học quốc tế Hong Kong HKIMO

Hong Kong International Mathematical Olympiad · season 2027

Expected preliminary March 2027, national round late April 2027 (2026 in Vietnam: 1 Mar, 26 Apr, final 22 Aug in Hong Kong). Date not announced yet.

Official site ↗

🦘 Kỳ thi Toán quốc tế Kangaroo IKMC

International Kangaroo Mathematics Contest · season 2027

Expected March 2027 (2026 exam: Sunday 22 Mar). Date not announced yet.

Official site ↗

🦁 Olympic Toán Singapore và châu Á SASMO

Singapore & Asian Schools Math Olympiad · season 2027

Expected late March or April 2027 (2026 in Vietnam: 29 Mar). Date not announced yet.

Official site ↗

Paths by contest

Sorted by nearest exam date.

Compare the 5 contests

ContestGrade 1?SeasonNext roundFormatSource

Olympic Toán học quốc tế TIMO

Thailand International Mathematical Olympiad · Fermat Education

Yes2026-27 (active)Chung kết quốc gia · 2026-12-0625 q / 90'Official ↗

Olympic Toán học châu Á ASMO

Asian Science & Mathematics Olympiad · RICE (đơn vị tổ chức tại Việt Nam)

Yes2026-27 (active)Vòng quốc gia · 2026-11-2225 q / 90'Official ↗

Olympic Toán học quốc tế Hong Kong HKIMO

Hong Kong International Mathematical Olympiad · Fermat Education

Yes2027 (upcoming)No date yet—Official ↗

Kỳ thi Toán quốc tế Kangaroo IKMC

International Kangaroo Mathematics Contest · IEG Việt Nam

Yes2027 (upcoming)No date yet—Official ↗

Olympic Toán Singapore và châu Á SASMO

Singapore & Asian Schools Math Olympiad · Khoa Khoa học liên ngành, Trường ĐH KHXH&NV, ĐHQG TP.HCM và SIMCC

From grade 22027 (upcoming)No date yet—Official ↗

Dates and rules come from organizer sites with a verification date; organizers may change them — double-check before registering.