81 ÷9＝            320÷4＝            56÷7＝              360÷30＝

810 ÷9＝           320÷8＝          560÷70＝             3600÷30＝

8100÷9＝          320÷2＝         5600÷700＝             720÷6＝

1.5元{#blank#}1{#/blank#}10元    3.5+1.2{#blank#}2{#/blank#}5   20×30{#blank#}3{#/blank#}15×40

0.5米{#blank#}4{#/blank#}0.7米    7.2-0.8{#blank#}5{#/blank#}0.4    400÷5{#blank#}6{#/blank#}245÷5

× {#blank#}1{#/blank#}        ÷3{#blank#}2{#/blank#}        ×2{#blank#}3{#/blank#} ×4        ÷ {#blank#}4{#/blank#}