3.9*6×2.8+2.7简便计算有没有

3.9*6×2.8+2.7简便计算有没有
2025-04-06 20:52:30
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回答1:

3.9*6×2.8+2.7简便计算有没有
3.9*6×2.8+2.7
=23.4*2.8+2.7
=65.52+2.7
=68.22