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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) 6914
=
={#blank#}1{#/blank#}
={#blank#}2{#/blank#}
={#blank#}3{#/blank#}
+ = ﹣ = ﹣ = ﹣ = ﹣ =
+ = ﹣ = + = ﹣ = + =
+ = ﹣ = + = 1﹣ = + =
1﹣ = + = ﹣ = ﹣ = + =
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