5个6相加是{#blank#}5{#/blank#}，再加上1个6是{#blank#}6{#/blank#}．

{#blank#}1{#/blank#}二十四  六九{#blank#}2{#/blank#}  {#blank#}3{#/blank#}二十八  {#blank#}4{#/blank#}二十八

4×7＝{#blank#}5{#/blank#}  6×9＝{#blank#}6{#/blank#}  3×8＝{#blank#}7{#/blank#}  7×9＝{#blank#}8{#/blank#}

7×4＝{#blank#}9{#/blank#}  9×6＝{#blank#}10{#/blank#}  8×3＝{#blank#}11{#/blank#}  9×7＝{#blank#}12{#/blank#}

2×□=□×□{#blank#}1{#/blank#}         □×□=□×□{#blank#}2{#/blank#}

90-50+3890-50+38              9角1元                  4×32×6

2×42+2+2+2                        19分2角                  3+23×2