6.28×1.5×6.28简便计灶凳算梁配是：=6.28×3/隐渣旅2×6.28=3.14×3×6.28=9.42×6.28=(10-0.58)×6.28=10×6.28-0.58×6.28=62.8-(0.6-0.02)×6.28=62.8-(0.6×6.28-0.02×6.28)=62.8-(3.768-0.1256)=62.8+0.1256-3.768=62.9256-3.768=59.1576
6.28×1.5×6.28简便计算？
Simone
发布于 2023-09-10 21:03:41
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