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题型:填空题 题类:常考题 难易度:普通
7的乘法口诀1799 10
列式是:{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
5×8= 4×5= 54+9= 8×9=
6×3= 6+80= 6×7= 64-30=
4×{#blank#}1{#/blank#}<30 {#blank#}2{#/blank#}×8<40
9×{#blank#}3{#/blank#}<46 {#blank#}4{#/blank#}×5<37
9×7+9=□×□
4+8+8+8+4=□×□
7×3+7+7+7+7=□×□
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