试题 试卷
题型:单选题 题类:常考题 难易度:普通
3、4的乘法口诀(2——5的乘法口诀)1607 10
{#blank#}1{#/blank#}×4=0
{#blank#}2{#/blank#}×3=9
4 × 1 = 3 × 2 = 6 × 2 = 1 × 8 =
4 + 1 = 3 + 2 = 6 + 2 = 1 + 8 =
3×55+3 5+45×4 2×43×2
6×290-78 9角1元 4元3元50角
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