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题型:填空题 题类:常考题 难易度:容易
一年级 20以内的退位减法764
15-5= 7+10= 18-5=
16-7= 11+4= 13-6=
11-9 {#blank#}1{#/blank#} 5 13-4 {#blank#}2{#/blank#} 6 14-8 {#blank#}3{#/blank#} 13-7
15-7 {#blank#}4{#/blank#} 4 12-6 {#blank#}5{#/blank#} 8 16-8 {#blank#}6{#/blank#} 15-7
10-6={#blank#}1{#/blank#}
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