Answer:
the only difference is that the value added method adds up production in the economy as it is produced, and the standard method of counting only used the completed value at the end of the production chain.
Step-by-step explanation:
The value added method in the production process aims to measure the value added at each stage of production considering intermediate products as input.
For example if plastic is produced in a plant and it is in turn used to produce plates. Value added at stage of plate production is the value of plates less cost of producing plastic.
The standard method counts only value of final goods and services.
Both methods give the same result because summation of value in the value added approach will be the same as the value at the end of the production chain (standard method).