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题型:填空题 题类:常考题 难易度:普通
万以内笔算加法(连加)2902 10
81+23+68+32+19=
{#blank#}3{#/blank#}+28={#blank#}4{#/blank#}+18
45×{#blank#}5{#/blank#}=32×{#blank#}6{#/blank#}
356+173+227=356+({#blank#}1{#/blank#}+{#blank#}2{#/blank#})
378+149+522+851={#blank#}1{#/blank#}
(152+74)+(26+48)= ( )
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