全新未做過，一本中文，六本英文 售$200共九本1)數學奧林匹克天天練 小五
2)Distinction Maths - Just Education P5
3 & 4)Tackling Problems in Mathematics - Selling
5A&5B
5) Mathematical Olympiad Training P5-6
Fairfield Book Publishers (原價$82)
6) Topical Tests for Maths P6 Pearson Long man
7,8,9) Olympiad Maths Trainer - SAP Education
Book 4 age 10-11 (原價$95)
Book 5 age 11-12 (原價$112)
Book 6 age 12-13 (原價$112)
全部九本現隻$200
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