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题型:填空题 题类:常考题 难易度:容易
万以内数的认识(复习)2790 10
588,589,,,592,593.
{#blank#}1{#/blank#},80{#blank#}2{#/blank#},60{#blank#}3{#/blank#},40{#blank#}4{#/blank#},20{#blank#}5{#/blank#}
4 8 12 16 20 24 28 {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}
① , , , , {#blank#}1{#/blank#},{#blank#}2{#/blank#}。
②2,5,9,14,20,27,{#blank#}3{#/blank#},44。
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