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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) 6915
=
{#blank#}1{#/blank#} + {#blank#}2{#/blank#} + {#blank#}3{#/blank#} +
{#blank#}4{#/blank#} - {#blank#}5{#/blank#} + {#blank#}6{#/blank#} +
- ={#blank#}1{#/blank#} + ={#blank#}2{#/blank#} - ={#blank#}3{#/blank#} - ={#blank#}4{#/blank#}
+ = {#blank#}5{#/blank#} - = {#blank#}6{#/blank#} - = {#blank#}7{#/blank#} + ={#blank#}8{#/blank#}
240+60= 62+38= 480﹣80= 690﹣480= 230×3=
999×0= 123×1= 300×5= 8×201≈ 403+398≈
1﹣ = + = ﹣ = + =
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