小学数学总复习（知识点）
__+__=__
偶数+偶数=偶数
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: 奇数-奇数= 偶数
Previous card: 奇数 +偶数=
Up to card list: 小学数学总复习（知识点）