5×6＝{#blank#}1{#/blank#}6×7＝{#blank#}2{#/blank#}3×8＝{#blank#}3{#/blank#}4×5＝{#blank#}4{#/blank#}9×9＝{#blank#}5{#/blank#}

4+5{#blank#}1{#/blank#}20

3×3{#blank#}2{#/blank#}9

1×1{#blank#}3{#/blank#}2

6×6{#blank#}4{#/blank#}12

4盒这样的月饼，一共有{#blank#}1{#/blank#}块

2×{#blank#}1{#/blank#}＜8    {#blank#}2{#/blank#}×6＜40

{#blank#}1{#/blank#}×{#blank#}2{#/blank#}=36            {#blank#}3{#/blank#}×{#blank#}4{#/blank#}=18

{#blank#}5{#/blank#}×{#blank#}6{#/blank#}=36            {#blank#}7{#/blank#}×{#blank#}8{#/blank#}=18