①15个苹果，平均放在3个盘子里，每盘放{#blank#}1{#/blank#}个。

②15个苹果，每盘放5个，可以放{#blank#}2{#/blank#}盘。

5×5=                             3×2=                                  6×6=

2×2=                             4×5=                                  1×4=

7×3=                            4×7=                                  4×4=

28÷4=                           35÷5=                                42÷7=

56÷8=                           36÷9=                                21÷3=

8×{#blank#}1{#/blank#}=32         7×{#blank#}2{#/blank#}=49        {#blank#}3{#/blank#}×8=64

{#blank#}4{#/blank#}×5=45          {#blank#}5{#/blank#}÷4=6         30÷{#blank#}6{#/blank#}=5

{#blank#}7{#/blank#}×{#blank#}8{#/blank#}=36       {#blank#}9{#/blank#}×{#blank#}10{#/blank#}=72      {#blank#}11{#/blank#}×{#blank#}12{#/blank#}=45

{#blank#}13{#/blank#}÷{#blank#}14{#/blank#}=8       {#blank#}15{#/blank#}÷{#blank#}16{#/blank#}=6      {#blank#}17{#/blank#}÷{#blank#}18{#/blank#}=9