DO MEMO NO. 145, S. 2021. CONGRATULATORY MESSAGE FOR THE 2021 HONGKONG INTERNATIONAL MATHEMATICAL OLYMPIAD (HKIMO) AWARDEES Posted on June 16, 2021 by DepEd Mandaluyong Leave a comment DO MEMO NO. 145, S. 2021. CONGRATULATORY MESSAGE FOR THE 2021 HONGKONG INTERNATIONAL MATHEMATICAL OLYMPIAD (HKIMO) AWARDEES Memorandum Numbered