①(1000× -160)÷
②39.25×99+39.25
③48×75%+53× -0.75
④[ -( - )]×
⑤1.25×48×2.5
①6.28-(1.28+0.25)
②×99+13÷50
③(1.64+1.64+1.64+1.64)×25
④
①12×[432÷(42-18)]
②
③
④3.6×2.5+6.4×2.5
⑤2.3×1.2+4.5÷0.75
⑥
①216÷(18×6)
② × + ÷
③( - )× ×36
④125%×2.5×3.2
⑤4.67-(0.67+2.98)
⑥ ÷[2÷( - )]