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题型：填空题 题类：常考题 难易度：普通
一年级 加、减两步式题328
6－＋4=
7-0= 9-9= 5+1+2= 10-5+4=
3+2= 2+7= 10-9 =
7-4 = 5+5 = 5-5 =
7+2–5 = 10-6+5=
8+5-2 = 6+4+0 =
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