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Class 8 math Formula, Cheat Sheet of Mathematics

Mathematics

These are easy and short notes for Class 8 [math] . Simple language for quick understanding Important points highlighted Useful for revision before exams Based on NCERT syllabus Perfect for students who want quick and clear revision notes.

Typology: Cheat Sheet

2025/2026

Available from 04/25/2026

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Algebraic Identities (a+b)*2 = a42 + 2ab + b*2 (a-b)A2 = a2 - 2ab + b42 a2 - bA2 = (a-b)(a+b) Linear Equations ax+b=c x=(c-by/a Exponents atm x an = a4(m+n) atm / an = a4(m-n) (a4m)4n = a4(mn) a0 =1 Squares & Cubes (a+b)*3 = a3 + bA3 + 3ab(atb) (a-b)43 = a3 - b43 - 3ab(a-b) Mensuration Rectangle: Area = Ixb, Perimeter = 2(I+b) Square: Area = a2, Perimeter = 4a Triangle: Area = 1/2xbxh Circle: Area = nr*2, Circumference = 2nr Percentage Percentage = (Value / Total) x 100 Profit & Loss Profit = SP - CP Loss = CP - SP Profit% = (Profit / CP) x 100 Simple Interest Sl=(PxRxT)/100 Speed, Time, Distance Speed = Distance / Time