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题型:填空题 题类:常考题 难易度:容易
两位数减整十数(不退位)991(10题)
75-60=
6+50=
84-80=
40+8=
△+☆=30
△-☆=10
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} = {#blank#}4{#/blank#} (人)
{#blank#}1{#/blank#} - {#blank#}2{#/blank#} = {#blank#}3{#/blank#}
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