总数量 | 卖出 | 剩余 | |
360 | 160 | ________ | |
500 | ________ | 220 | |
________ | 100 | 430 | |
260 | ________ | 190 | |
310 | 280 | ________ |
________+52<80 ________-40<130 230+________<600
680-________>180 720-________>240 920-________>580
56+35________76 8003________800+3 285+5________305
3000-50________2500 2356-25________2331 1000-482________500
验算:
验算:
246元
367元