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题型:单选题 题类:常考题 难易度:普通
分数除以整数(不含带分数)7287
={#blank#}1{#/blank#} = {#blank#}2{#/blank#} = {#blank#}3{#/blank#} ={#blank#}4{#/blank#}
+{#blank#}3{#/blank#}× = × ÷ × ={#blank#}4{#/blank#}
× {#blank#}1{#/blank#} ÷7 15× {#blank#}2{#/blank#} ÷
42÷ {#blank#}3{#/blank#}42÷ ÷ {#blank#}4{#/blank#} ÷
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