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题型:口算与估算 题类:常考题 难易度:容易
吉林省长春市基隆学校(小学)2018-2019学年五年级下学期数学月考试卷(3月份)
+ = ﹣ = ﹣ = ﹣ = ﹣ =
+ = ﹣ = + = ﹣ = + =
+ = ﹣ = + = 1﹣ = + =
1﹣ = + = ﹣ = ﹣ = + =
计算异分母分数的加法和减法,应该把两个分数先通分,化成分数单位相同的分数,然后按照同分母的加减法则计算.
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