桌上有3个苹果，冰箱里还有12个，一共有几个苹果？(E4M5V4|(Z7~)|'Y3e2i
算式：提示(X+F1G0J2];]0g-Y3D/A:~(G0\(E4M5V4|(Z7~)|'Y3e2i
答：一共有([)C3O:G个苹果。(E4M5V4|(Z7~)|'Y3e2i