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题型:填空题 题类:常考题 难易度:困难
小数乘整数5711 10
75×4={#blank#}1{#/blank#}
(75×2)×(4×5)={#blank#}2{#/blank#}
(75×10)×(4×100)={#blank#}3{#/blank#}
(75×100)×(4×100)={#blank#}4{#/blank#}
1.019×1.2{#blank#}1{#/blank#}
4.2×5.15{#blank#}2{#/blank#}
0.93×21{#blank#}3{#/blank#}
0.745×187={#blank#}1{#/blank#}
40×5+3 {#blank#}1{#/blank#}40×(5+3)
144-24÷6 {#blank#}2{#/blank#}(144-24)÷6
137-75-25{#blank#}3{#/blank#}137-(75-25)
60÷2×5{#blank#}4{#/blank#}60÷(2×5)
30×23{#blank#}5{#/blank#}31×23 15×20{#blank#}6{#/blank#}21×15
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