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题型:单选题 题类:常考题 难易度:容易
混合运算(乘加、乘减、除加、除减两步计算式题) 2891 10
52+15{#blank#}1{#/blank#}15+52 6+2×6{#blank#}2{#/blank#}(6+2)×6
23-3×9{#blank#}3{#/blank#}27-9-9 50-14-16{#blank#}4{#/blank#}50-(14+16)
1×2= 1×8= 2×5= 3+3+3=
8×5= 4×4= 8×7= 6×5+1=
2+2= 2×6= 7×0= 7×7-7=
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