111÷3＝37       444÷{#blank#}1{#/blank#}＝37

222÷6＝37       555÷{#blank#}2{#/blank#}＝37

333÷9＝37       666÷{#blank#}3{#/blank#}＝37

2.8÷0.7=         1.5+4.2=          0.28×10=         6.87-0.87=

9.82×0=          1.01-1=           21.8÷2=            2.5×3.4×40=

2.45+0.5=         0.1²=             0.56÷0.8=        0.2×0.2×0.2=

74×0.028={#blank#}1{#/blank#}              740×2.8={#blank#}2{#/blank#}

207.2÷28={#blank#}3{#/blank#}              0.2072÷74={#blank#}4{#/blank#}