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