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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) 6932
夺红旗:
{#blank#}1{#/blank#} {#blank#}2{#/blank#}
+ = + = - = - =
- = - = + = - =
- = 1- = + = + =
1- {#blank#}1{#/blank#} + {#blank#}2{#/blank#} + {#blank#}3{#/blank#} +
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