1. Sorting: Empty bottles are sorted according to their types (such as plastic bottles and glass bottles) and specifications, which makes it easier to count the quantity and ensure the accuracy.
2. Use counting tools: Use auxiliary tools such as counters, counting boards or hand-held counters to help record the quantity under each category. Click the counter once every time you put an empty bottle, and record the quantity quickly and accurately.
3. Batch calculation: There are many empty bottles to check, so batch calculation can be done first. Empty bottles of the same type are piled together to form a neat arrangement, and then estimated by a standard unit (such as a stack or a box). By calculating the average number of bottles in a pile or a box and multiplying it by the actual number of bottles in a pile or a box, we can quickly get the estimated value of the total amount.
4. Teamwork: There are many people involved in the quantity counting, and the tasks can be divided. Everyone is responsible for different types of empty bottles. This can reduce duplication of work, improve efficiency, and then make the final total.