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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457(10题)
10+{#blank#}1{#/blank#}=17 10-{#blank#}2{#/blank#}=3 12+{#blank#}3{#/blank#}=18
{#blank#}4{#/blank#}-2=7 {#blank#}5{#/blank#}+2=15 10+{#blank#}6{#/blank#}=20
{#blank#}7{#/blank#}-4-6=0 {#blank#}8{#/blank#}+6=19 6+{#blank#}9{#/blank#}=10
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