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题型:填空题 题类:常考题 难易度:普通
20以内的进位加法和退位减法533(10题)
填两个数的差{#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}、{#blank#}4{#/blank#}、{#blank#}5{#/blank#}、{#blank#}6{#/blank#}。
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} = {#blank#}4{#/blank#}
12-{#blank#}2{#/blank#}=7
7+{#blank#}3{#/blank#}=12
{#blank#}4{#/blank#}+8=12
11-6 16-8 10-5
7+5 12-4 14-9
12+0 15-7 17-9
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