81÷9=9 

88.2÷9=9.8 

88.83÷9=9.87 

88.884÷9={#blank#}1{#/blank#} 

{#blank#}2{#/blank#}÷9=9.8765 

{#blank#}3{#/blank#}÷9=9.876543 

88.8888888÷9={#blank#}4{#/blank#}

62×68=

85×85=

49×41=

73×77=

32×38=

46×44=

验算：

6×4＝24             6.6×3.4＝22.44             6.66×33.4＝222.444

6.666×333.4＝{#blank#}1{#/blank#}

1.23×9+0.04=11.11

12.34×9+0.05=111.11

123.45×9+0.06=1111.11

{#blank#}1{#/blank#}={#blank#}2{#/blank#}×9{#blank#}3{#/blank#}

{#blank#}4{#/blank#}={#blank#}5{#/blank#}×9+{#blank#}6{#/blank#}

{#blank#}7{#/blank#}={#blank#}8{#/blank#}×9+{#blank#}9{#/blank#}