Prime Minister Datuk Seri Najib Tun Razak today wished success to all students sitting for the written Form Three Assessment examination (PT3) from today until Thursday.

Najib is his Twitter page update said he hoped they could answer the examination questions calmly and confidently.

A total of 453,413 candidates are sitting for the PT3, being held for the first time at 2,608 examination centres nationwide.

PT3 replaces the Penilaian Menengah Rendah (PMR) and covers 12 subjects including Bahasa Melayu, English, Mandarin, Tamil, Mathematics, Science, Islamic Education and Integrated Living Skills.

Students' performance in PT3 is measured as Grade A, B, C, D, E or F.