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题型:填空题 题类:常考题 难易度:普通
9的乘法口诀1865 9
99,90,,,,,,,,,9,0.
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5+9{#blank#}1{#/blank#}5×9 12÷2{#blank#}2{#/blank#}12÷3 3+3+3{#blank#}3{#/blank#}3×3
42÷6{#blank#}4{#/blank#}7×1 6×4{#blank#}5{#/blank#}6×5 45÷5{#blank#}6{#/blank#}32÷4
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