5×7读作5乘7，积是12．

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四八{#blank#}1{#/blank#}      三六{#blank#}2{#/blank#}      一七{#blank#}3{#/blank#}      二五{#blank#}4{#/blank#}。

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5×6＝                  79－7＝                  2×3＝                  6×9＝

6×4＋6＝                  2×5－5＝                  5×3＋2＝                  4×4＋2＝