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题型:解决问题 题类:常考题 难易度:容易
表内乘法2121 10
24= × = × = × = × = ×
{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
口诀:{#blank#}4{#/blank#}
3+3+3+3写成乘法算式是4×3.
2×{#blank#}1{#/blank#}=12
{#blank#}2{#/blank#}×4=32
{#blank#}1{#/blank#}×4<33 29>{#blank#}2{#/blank#}×8
{#blank#}3{#/blank#}×7<39 46>{#blank#}4{#/blank#}×9
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