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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510(10题)
2+9=
10-2{#blank#}1{#/blank#}10-7 15+4{#blank#}2{#/blank#}15-4 13-5{#blank#}3{#/blank#}14-5
12-2{#blank#}4{#/blank#}13-2 4+8{#blank#}5{#/blank#}5+9 14-4{#blank#}6{#/blank#}15-5
{#blank#}1{#/blank#}+{#blank#}2{#/blank#}={#blank#}3{#/blank#}
6+7= 12 - 7= 7 + 8= 14 - 8=
9+6= 16 - 8= 5 + 6= 12 - 8=
9+5= 13 - 7= 11 - 4= 14 -6=
18-4= 11-6= 12+5= 15-6=
12+6= 15-7= 7+13= 19-8=
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