`(-5)+(-8)=(-8)+(........)`

(1)/(2.5)+(1)/(5.8)+(1)/(8.11)+.... nterms =

State True or False : (5/8)^(9)-:(5/8)^(4)=(5/8)^(4)

Draw number lines and locate the following points: (i) (1)/(4),(1)/(2),(3)/(4),(4)/(4) (ii) (1)/(8),(2)/(8),(3)/(8),(5)/(8),(7)/(8) (iii) (2)/(5),(3)/(5),(4)/(5),(8)/(5)

Sum the series upto n terms (1)/(2.5)+(1)/(5.8)+(1)/(8.11)+...

The expression (5x-8)^3-(3x-8)^3-6x(5x-8)(3x-8) when simplifies gives ____

Write each of the following percent: (7)/(25) (ii) (14)/(625)( iii) (5)/(8) (iv) 0.8

17(2)/(5)xx4(5)/(8)-?=46(7)/(8)