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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1881 10
20>{#blank#}1{#/blank#}×7 {#blank#}2{#/blank#}×5<38
{#blank#}3{#/blank#}×5<35 7×{#blank#}4{#/blank#}<45
6×{#blank#}1{#/blank#}=30 72÷{#blank#}2{#/blank#}=9 48÷{#blank#}3{#/blank#}=8
9÷{#blank#}4{#/blank#}=9 9×{#blank#}5{#/blank#}=54 36÷{#blank#}6{#/blank#}=9
63÷{#blank#}7{#/blank#}=9 {#blank#}8{#/blank#}×7 =35 {#blank#}9{#/blank#}×4 = 28
6×3= 2×1= 14+8= 4×6=
3×7= 5×9= 3×8= 74-20=
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