淘气从树上摘了8个桃子后树上还剩5个，树上原来有多少个桃子？+c9V-c,u2w;q6B'`8N:h5^-R,w*I
算式：提示+D)x:{'r/d8C/u(E3e2V9R4{0p4q+c9V-c,u2w;q6B'`8N:h5^-R,w*I
答：原来树上有3m9}*?-e:C:r6};f/}个桃子。+c9V-c,u2w;q6B'`8N:h5^-R,w*I