3×5－12={#blank#}1{#/blank#}2×3＋50={#blank#}2{#/blank#}4×2－8={#blank#}3{#/blank#}

5＋4×5＝{#blank#}1{#/blank#}

（6＋3）×5＝{#blank#}2{#/blank#}

9×3＝{#blank#}1{#/blank#}     4×6＝{#blank#}2{#/blank#}    5×3＝{#blank#}3{#/blank#}

45÷5＝{#blank#}4{#/blank#}    32÷8＝{#blank#}5{#/blank#}    21÷3＝{#blank#}6{#/blank#}

1×8＝{#blank#}7{#/blank#}      2×6÷3＝{#blank#}8{#/blank#}

4×2×5＝{#blank#}9{#/blank#}      48÷8÷3＝{#blank#}10{#/blank#}

5×9＋3＝{#blank#}11{#/blank#}      4×9－2＝{#blank#}12{#/blank#}

3×8{#blank#}1{#/blank#}4×6                 9×6{#blank#}2{#/blank#}7×8                 8×9{#blank#}3{#/blank#}100-19

8+8{#blank#}4{#/blank#}8×8                 6×7{#blank#}5{#/blank#}8×5                 7×7{#blank#}6{#/blank#}17+33