20/08/2026
Can you find the nth term? 🔢🧠 3, 7, 11, 15... The pattern is +4, so the nth term is 4n − 1! Try it yourself and check the answer 🎯📚
Mathematics for kids from grade 6 to 11. Sinhala medium/ English medium
National syllabus/ Cambridge syllabus/ Edexcel syllabus.
(1)
Colombo
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