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题型:填空题 题类:常考题 难易度:普通
异分母分数加、减法(不含带分数) 6923
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1)三人一共吃了蛋糕的几分之几?2)蛋糕还剩下多少?
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① + = ② ﹣ = ③ + = ④ ﹣ = ⑤ + =
⑥1+ = ⑦ + ﹣ = ⑧ ﹣ ⑨ + = ⑩1﹣ + =
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