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题型:填空题 题类:常考题 难易度:困难
笔算乘法(含估算,含连乘式题:125×8×7) 3043 10
5f+7f=
13.6b-4b=
2m-0.7m=
1.8xy+0.9xy=
2m×2m=
2n+8n-4n=
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