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题型:单选题 题类:常考题 难易度:普通
1322-199={#blank#}1{#/blank#} 1.87+5.3={#blank#}2{#/blank#} 2-2÷5 ={#blank#}3{#/blank#} ( + )×56={#blank#}4{#/blank#}
603×39≈{#blank#}5{#/blank#} 4950÷51≈{#blank#}6{#/blank#} 10÷ ×10={#blank#}7{#/blank#} {#blank#}8{#/blank#}: =
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