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题型:填空题 题类:常考题 难易度:困难
整十数加、减整十数1047(11题)
38-20=
78-50=
88-30=
看一看,填一填。
{#blank#}1{#/blank#}+{#blank#}2{#/blank#}={#blank#}3{#/blank#}
{#blank#}4{#/blank#}-{#blank#}5{#/blank#}={#blank#}6{#/blank#}
想:先算40加20,得{#blank#}1{#/blank#};再把{#blank#}2{#/blank#}和{#blank#}3{#/blank#}合起来,得{#blank#}4{#/blank#}.
(先填 ,再从左到右填写括号)
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} ={#blank#}4{#/blank#}
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
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