Unit 1, Graphic Transformation, No Formula
Unit 2, factor and multiple, no formula
Unit 1, cuboid and cube, formula:
Cube: surface area = side length × side length ×6
Volume = side length × side length × side length
Cuboid: surface area = (length× width+length× height+width× height) ×2.
Volume = length× width× height
Unit 4, the meaning and nature of the fraction, the formula of the nature:
B/A = (b× c)/(a× c) = (b÷ d)/(a÷d) (both c and d are not equal to 0).
Unit 5, Addition and subtraction of fractions, the formula is:
b/a+c/a=(b+c)/a
b/a-c/a=(b-c)/a
Unit 6, Statistics, Formula
Average value =(a 1+a2+a3++an)÷n