求24里面有几个6，列式是24÷4=6．

3×6{#blank#}1{#/blank#}12

25{#blank#}2{#/blank#}5×5

4÷2{#blank#}3{#/blank#}8

12÷3{#blank#}4{#/blank#}3

9×4＝{#blank#}1{#/blank#} 

45÷5＝{#blank#}2{#/blank#} 

18÷9＝{#blank#}3{#/blank#} 

9×9＝{#blank#}4{#/blank#} 

3×{#blank#}1{#/blank#}=27    {#blank#}2{#/blank#}×8=40    6×{#blank#}3{#/blank#}=42    {#blank#}4{#/blank#}×7=42

2×{#blank#}5{#/blank#}=18    5×{#blank#}6{#/blank#}=35    4×5={#blank#}7{#/blank#}    6×{#blank#}8{#/blank#}=54