350÷{#blank#}1{#/blank#}＝5

{#blank#}2{#/blank#}×5＝75

38×2＝{#blank#}3{#/blank#}＋16

560－120＝50×{#blank#}4{#/blank#}＋40

0.363÷3={#blank#}1{#/blank#}      36.3÷3={#blank#}2{#/blank#}      3.63÷3={#blank#}3{#/blank#}

0.363÷121={#blank#}4{#/blank#}    36.3÷121={#blank#}5{#/blank#}    3.63÷121={#blank#}6{#/blank#}

8×{#blank#}1{#/blank#}=32         7×{#blank#}2{#/blank#}=49        {#blank#}3{#/blank#}×8=64

{#blank#}4{#/blank#}×5=45          {#blank#}5{#/blank#}÷4=6         30÷{#blank#}6{#/blank#}=5

{#blank#}7{#/blank#}×{#blank#}8{#/blank#}=36       {#blank#}9{#/blank#}×{#blank#}10{#/blank#}=72      {#blank#}11{#/blank#}×{#blank#}12{#/blank#}=45

{#blank#}13{#/blank#}÷{#blank#}14{#/blank#}=8       {#blank#}15{#/blank#}÷{#blank#}16{#/blank#}=6      {#blank#}17{#/blank#}÷{#blank#}18{#/blank#}=9

1880◯0◯28=28            468+ _____ =950                _____ ÷17=42……5

9◯13◯17=100              120+ _____ ÷2=150          （126+34）× _____ =640