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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481(10题)
7+3=
7+4=
7+5=
7+6=
7+=
+=
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
{#blank#}4{#/blank#}
8+{#blank#}1{#/blank#}=13 8+{#blank#}2{#/blank#}=16 8+{#blank#}3{#/blank#}=12
{#blank#}4{#/blank#}+6=14 {#blank#}5{#/blank#}+7=15 {#blank#}6{#/blank#}+8=11
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