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题型:填空题 题类:常考题 难易度:容易
万以内笔算加法(不含连加) 2517 10
77+67=
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}
18-9= 39-5= 6+69= 10+30+20=
51-30= 100-20= 33+60= 90-40-20=
47-35= 70-7= 58+12= 19+19-19=
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