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题型:填空题 题类:常考题 难易度:困难
11~~20各数的认识430(10题)
{#blank#}1{#/blank#} + {#blank#}2{#/blank#} = {#blank#}3{#/blank#}
{#blank#}4{#/blank#} - {#blank#}5{#/blank#} = {#blank#}6{#/blank#}
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}个十和{#blank#}3{#/blank#}个一
我猜有{#blank#}1{#/blank#}个,数数是{#blank#}2{#/blank#}个.
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