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题型:填空题 题类:常考题 难易度:容易
9的乘法口诀1889 10
{#blank#}1{#/blank#}
8×1 = 7×4 = 8×8 = 9×4 + 9 = 8×6+3 =
9×9= 8×7= 7×7= 6×5 – 5 = 8×4 – 5 =
5×4= 2×8= 5×9= 7+9+7= 9×8 – 8 =
4×8{#blank#}1{#/blank#}32 5×6{#blank#}2{#/blank#}5+5+5
8×8{#blank#}3{#/blank#}65 49-18{#blank#}4{#/blank#}5×7
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