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题型:填空题 题类:常考题 难易度:容易
万以内加、减法口算 2829 10
47+38=
64-27=
260+80=
240-60=
20+{#blank#}1{#/blank#}=28
{#blank#}2{#/blank#}-40=30
47+68 ={#blank#}1{#/blank#}
100-10 13+54 30-3 57+43
{#blank#}1{#/blank#}<{#blank#}2{#/blank#}<{#blank#}3{#/blank#}<{#blank#}4{#/blank#}
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