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题型:填空题 题类:常考题 难易度:困难
一年级 1~~5的减法124
+ =2 - =3
= =
0+{#blank#}1{#/blank#}=5
{#blank#}2{#/blank#}-2=2
3-{#blank#}3{#/blank#}=0
4-{#blank#}1{#/blank#}=2
2+1=
(从上到下依次填写)
{#blank#}1{#/blank#}
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