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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563(10题)
18- = ={#blank#}1{#/blank#}
+ +3=17 ={#blank#}2{#/blank#}
8+6 8+8
14-8 18-9
16-8 10+4
17-8 15-9
13+3 17-9
8+{#blank#}1{#/blank#}=17 9+{#blank#}2{#/blank#}=16 9 +{#blank#}3{#/blank#}=18
17-8={#blank#}4{#/blank#} 16-9={#blank#}5{#/blank#} 18-9={#blank#}6{#/blank#}
17-{#blank#}7{#/blank#}=8 16-{#blank#}8{#/blank#}=9 18-{#blank#}9{#/blank#}=9
12-5=
11-8=
7+5=
6+7=
13-4=
16-9=
15-7=
17-8=
5+8=
6+8=
8+8=
14-6=
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