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题型:填空题 题类:常考题 难易度:容易
8的乘法口诀 1830 11
5×8+8= 6×8+8= 8×10-10=
{#blank#}1{#/blank#}
(32-27)×9={#blank#}1{#/blank#}
7×9-63{#blank#}1{#/blank#}30+2×6 1+5×9{#blank#}2{#/blank#}(1+5)×9 3×5+2{#blank#}3{#/blank#}5×7-18
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