In Computation of Numbers, addition is rather simple and universal computation of arithmetic. However, no matter what advanced computer in the world, and no matter what backward calculator(such as abacus in China etc.) in people’s hand, to do sum of addition is always a NP problem in all the time. Such as capacities of numbers in variables, precise computing (PC) of which is concerned with a certain algorithm, computing precision (CP) of which is limited to data bits of CPU word size in computer, perturbation motion(PM) of which is owing to some errors in computing of numbers, etc. This paper gives a realization of novel addition with AI-VCR computation in computer, and its reality solutions of avoiding the sum value’s overflowing after many times additions, PM in arithmetic computation, insufficient valid figures, etc.