3.2×0.25×1.25

={#blank#}1{#/blank#}×1.25

={#blank#}2{#/blank#}

3.6×{#blank#}1{#/blank#}－{#blank#}2{#/blank#}×2.8＝12        {#blank#}3{#/blank#}×1.5＋2.5×{#blank#}4{#/blank#}＝9

①3.6+6.4×0.65

②20-3.69÷1.8

③

④18.8×4+1.2÷0.25

⑤118×

⑥（0.74-0.74× ）÷0.37

 ①  -  +  -  

 ②3.6÷0.8÷1.25 

 ③  ÷  +  ×  

 ④72×（  -  ） 

3.5×2.3＋1.46                        

2.5×64×12.5

7.95÷0.25÷40                        

2.5×2.7＋7.3×2.5

201×0.15－0.15                        

43.5÷[0.01÷（2.1－2.08）]