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题型:填空题 题类:常考题 难易度:普通
11~~20各数的认识438(10题)
=
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} = {#blank#}4{#/blank#}
8- 3=5(个)
45{#blank#}1{#/blank#}40=85
33{#blank#}2{#/blank#}30=3
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