题目内容
用简便方法计算.
2.7+(11.9-2.9)×2.7
答案:
解析:
解析:
|
2.7+(11.9-2.9)×2.7 =2.7+9×2.7 =2.7×(1+9) =2.7×10 =27 |
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题目内容
用简便方法计算.
2.7+(11.9-2.9)×2.7
|
2.7+(11.9-2.9)×2.7 =2.7+9×2.7 =2.7×(1+9) =2.7×10 =27 |