A cube of side one meter length is cut into small cubes of side 10 cm each How many such small cubes...........

Explanation:

Along one edge, the number of small cubes that can be cut 
= 100/10 = 10 
Along each edge 10 cubes can be cut. (Along length, breadth and height). Total number of small cubes that can be cut = 10 * 10 * 10 = 1000