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题型:填空题 题类:常考题 难易度:容易
11~~20各数的认识427(10题)
2,1,4,1,8,1,{#blank#}1{#/blank#},{#blank#}2{#/blank#}。
685,695,{#blank#}1{#/blank#},715,{#blank#}2{#/blank#},735,{#blank#}3{#/blank#}
1,2,3,2,3,4,3,4,5,4,5,{#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}、{#blank#}4{#/blank#}.
16、24、{#blank#}1{#/blank#}、40、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}
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