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题型:填空题 题类:常考题 难易度:普通
加、减两步式题551(10题)
3+4+10=
18-8+2=
2+8+4=
18+1+0=
13-({#blank#}1{#/blank#})=5 14-({#blank#}2{#/blank#})=6 ({#blank#}3{#/blank#})-5=9 11-({#blank#}4{#/blank#})=7
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#} ={#blank#}6{#/blank#}
12 - {#blank#}1{#/blank#} - {#blank#}2{#/blank#} ={#blank#}3{#/blank#}
16+5-6
=16-6+5
=10+5
=15
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