试题 试卷
题型：解决问题 题类：常考题 难易度：困难
3、4的乘法口诀(2——5的乘法口诀) 1564 10
{#blank#}1{#/blank#}×4＝32
{#blank#}2{#/blank#}×6＝24
5×{#blank#}3{#/blank#}＝45
6×{#blank#}1{#/blank#}<21 7×{#blank#}2{#/blank#}<49 4×{#blank#}3{#/blank#}<27
3×{#blank#}4{#/blank#}<14 5×{#blank#}5{#/blank#}<44 6×{#blank#}6{#/blank#}<32
4×3{#blank#}1{#/blank#}7 9×6{#blank#}2{#/blank#}60 45-36+27{#blank#}3{#/blank#}40
3+3{#blank#}4{#/blank#}9 5×4{#blank#}5{#/blank#}20 86-20{#blank#}6{#/blank#}55-40
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