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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 1850 10
算式:×=
3×{#blank#}1{#/blank#} =12
2×{#blank#}2{#/blank#} =6
5{#blank#}1{#/blank#}2×2
8{#blank#}2{#/blank#}4×2
54= × ,27= × 8= ×
12= × 18= × 45= ×
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