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题型:填空题 题类:常考题 难易度:容易
9的乘法口诀1876 10
4×2=
9×8=
7×8= 8×6= 9×5= 6×6=
2×8= 8×9+9= 9+7= 9×7=
6×8-8= 9×4+4= 9×6+6= 9×5-9=
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