14-4= 4+6= 10+9= 9-9= 5+9=
13-4= 10+3= 16-10= 10-0= 2+14=
10-3-7= 9-2+6= 10-7+3= 7+0+6=
□○□=□(个)
□○□=□(本)
①216÷(18×6)
② × + ÷
③( - )× ×36
④125%×2.5×3.2
⑤4.67-(0.67+2.98)
⑥ ÷[2÷( - )]