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题型:填空题 题类:常考题 难易度:普通
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} = {#blank#}4{#/blank#} (个)
6{#blank#}1{#/blank#}7=13
8{#blank#}2{#/blank#}7=15
2{#blank#}3{#/blank#}9=11
4{#blank#}4{#/blank#}9=13
9{#blank#}5{#/blank#}6=3
13{#blank#}6{#/blank#}2=11
31+18÷7=7
2+7×6=54
8×15-12=24
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