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题型:填空题 题类:常考题 难易度:容易
异分母分数加、减法(不含带分数) 6939
=
={#blank#}1{#/blank#} ={#blank#}2{#/blank#}
+ {#blank#}1{#/blank#}1 20{#blank#}2{#/blank#}7.95×3.28
- = 0.35+ = - = - + =
+ = 2- = 1- - = + + =
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