PURPOSE: To enable a precise taking out of only a desired number of objects to be counted, by a method wherein objects to be counted are weighed in small amounts by means of a plurality of weighing devices, and each number of the objects so obtained are appropriately combined.

CONSTITUTION: With a start signal s inputted from a packer, a microcomputer 4 starts its operation. That is, a selection signal t is sent to an analoge multiplexer 2 to convert it by means of a A/D converter 3 so that weighing data, which are outputted from weighing devices 1, 1..., pass in order through the multiplexer 2, and to store it in the computer 4. After storing of weighing data is completed, each data is divided into a simple weight being set by a simple weight setting part 6 to count the number of objects to be measured at each weighing device 1. The addition of each number of the objects selects a combination in which a combined number satisfies data being set by a number setting part 5, and upper limit and lower limit number setting parts 7 and 8. A discharge signal u is sent to the weighing devices 1 corresponding to the combination to discharge articles, and a desired number of the articles can be taken out.