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题型:填空题 题类:常考题 难易度:容易
20以内的进位加法和退位减法523(10题)
9+3=
12{#blank#}1{#/blank#}6+6 16-7 {#blank#}2{#/blank#}19-9
18-8 {#blank#}3{#/blank#}9 6 {#blank#}4{#/blank#}14-6
12-3{#blank#}5{#/blank#}3+5 7+8 {#blank#}6{#/blank#}9+6
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
{#blank#}1{#/blank#}
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