四六二十四

6×{#blank#}1{#/blank#}，4×{#blank#}2{#/blank#}

四九{#blank#}1{#/blank#}

{#blank#}2{#/blank#}

{#blank#}3{#/blank#}

{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}

4{#blank#}1{#/blank#}9=36         27-9{#blank#}2{#/blank#}18       16+20{#blank#}3{#/blank#}35

40{#blank#}4{#/blank#}4=36       3×4=6{#blank#}5{#/blank#}2

4+38{#blank#}1{#/blank#}40+38           76+21{#blank#}2{#/blank#}99-5           67+9{#blank#}3{#/blank#}69+7

5×5{#blank#}4{#/blank#}14+13             2×4{#blank#}5{#/blank#}4×2                6+6+6{#blank#}6{#/blank#}4×6

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

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