8{#blank#}1{#/blank#}7=15      2{#blank#}2{#/blank#}9=18     42{#blank#}3{#/blank#}7=6

36{#blank#}4{#/blank#}4=9      8{#blank#}5{#/blank#}7=56     90{#blank#}6{#/blank#}9=81

3×7=        6×7=        4×4=        2×5=

7×7=        8×4=        4×1=        3×6=

9×9=        2×3=        6×5=        7×3=

{#blank#}1{#/blank#}六三十         {#blank#}2{#/blank#}六十三        {#blank#}3{#/blank#}二十四

{#blank#}4{#/blank#}四十五         二八{#blank#}5{#/blank#}         {#blank#}6{#/blank#}六十二