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题型:单选题 题类:常考题 难易度:容易
9的乘法口诀1895 10
8×2{#blank#}1{#/blank#}7×3
6×6{#blank#}2{#/blank#}4×9
3×8{#blank#}3{#/blank#}4×6
6×{#blank#}1{#/blank#}<21 7×{#blank#}2{#/blank#}<49 4×{#blank#}3{#/blank#}<27
3×{#blank#}4{#/blank#}<14 5×{#blank#}5{#/blank#}<44 6×{#blank#}6{#/blank#}<32
9×8= 5×5= 80-6= 58+2=
8+47= 72+9= 9×7= 4×8=
7×4= 17-8= 17+5= 6×5=
43-30= 82-9= 12-3= 5×9=
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