72.5-2.07÷23
5.07×3.6+9.4
4.61×0.9÷4.61
7.9×(3.64÷2.6)
4.2+3.6÷60
0.2×[(0.65+0.75)÷0.25]
①
②
③
④
⑤
⑥
①216÷(18×6)
② × + ÷
③( - )× ×36
④125%×2.5×3.2
⑤4.67-(0.67+2.98)
⑥ ÷[2÷( - )]