Here are some free prelim papers. All schools (2007 to 2017) prelim papers will be provided to my regular students . For students preparing for Alevel , do past 5 years alevel paper and prelim papers from IJC, JJC, PJC, CJC, TPJC.
2017 Prelim (H2 maths syllabus 9758)
2016 Prelim (H2 maths syllabus 9740)