87-23=?,72-46=?,100-11=?
24+32=?,27+46=?,35+66=?
1*9=?,2*9=?,3*9=?
4*9=?,5*9=?,6*9=?
7*9=?,8*9=?,9*9=?
---
?+25=74-45,?-23=18+18
12+?+52=96,2+13+24+35=?
11+?=43-?,17+33-27+13=?
?-13=?+27,100-13-24-35=?
谁知盘中餐