试题 试卷
题型：综合题 题类：常考题 难易度：困难
人教版二年级上册数学期末提优冲刺卷（一）
28+16
=28+2+14
=30+14
=44
=32++
=40+
=
=62++
=70+
=++
=+
35＋18＋32
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