{#blank#}1{#/blank#}个0.01减去{#blank#}2{#/blank#}个0.01是{#blank#}3{#/blank#}个0.01，所以百分位上是{#blank#}4{#/blank#}；

{#blank#}5{#/blank#}个0.1减去{#blank#}6{#/blank#}个0.1是{#blank#}7{#/blank#}个0.1，所以十分位上是{#blank#}8{#/blank#}；

{#blank#}9{#/blank#}个1减去{#blank#}10{#/blank#}个1是{#blank#}11{#/blank#}个1，所以个位上是{#blank#}12{#/blank#}。

0.9-0.7=           2.2+5.5=          8.8-6.6=          1-0.5=

3.9-3=             1-0.09=           0.7-0.7=           5.5+11=

8.2×5.18.2

12.35×112.35

4.2×0.174.2+0.17

4.9×4.14.9

0.07×10.67×1.06

0.99×1.029.9×0.102