苏教版二年级数学下册第六单元《减法》计算题(笔算)期末复习练习题二427535974306625-235-185-507-883-268332384945613718-178-508-663-299-693504446608975785-286-293-109-189-698893576776607778-598-286-109-176-608977294800742626-445-279-412-539-385644247418498467-388-107-195-208-276434754800669203-338-346-419-508-234694721486632848-598-200-199-376-689列竖式计算并验算:536-275=700-219=364-479=197-78=504-267=920-837=462-378=300-376=592-69=509-281=367-209=865-76=304-82=614-108=306-54=707-408=537-276=437-409=