495+308=?,259+456=?,955+703=?
732-85=?,952-637=?,1368-782=?
97+?=872,230+?=752,1218+?=1615
35*7=?,9*18=?,820*4=?
435/3=?,440/8=?,864/6=?
---
?-223=898-456,189+123+455+397=?
745-275=?+325,508+575+376-1259=?
277+?+348=942,1069+513-779-681=?
249+?-513=425,1944-690-570-450=?
玩冰弄湿鞋