Answer: Here is a summarized list of Class 8 math formulas that can be used.
Additive inverse of rational number: a/b = -b/a
Multiplicative Inverse of a/b = c/d , if a/b × c/d = 1
Distributivity a(b - c) = ab - ac
Probability of the occurrence of an event = Number of outcomes that comprise an event/ Total number of outcomes
Compound Interest formula = Amount - Principal, Amount in case the interest is to be calculated annually = Principal ( 1 + Rate/100)n, where ‘n’ is the time period.
(a - b)2 = a2 - 2ab + b2
(a + b) (a - b) = a2 - b2
Euler’s Formula: For any polyhedron, Number of faces + Number of vertices - Number of edges = 2
Volume of a Cone = (1 / 3 )πr2h
Volume of a Sphere = (4/3) π r3