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题型:填空题 题类:常考题 难易度:容易
3、4的乘法口诀(2——5的乘法口诀)1587 10
2×{#blank#}1{#/blank#} =14 {#blank#}2{#/blank#}×5=40
5×{#blank#}3{#/blank#} =15 {#blank#}4{#/blank#}×1=4
4×3{#blank#}1{#/blank#}14
2×3{#blank#}2{#/blank#}2+3
8{#blank#}3{#/blank#}2×4
乘法算式:{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
口诀:{#blank#}4{#/blank#}
8×8{#blank#}1{#/blank#}2×8
2×9{#blank#}2{#/blank#}9×2
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