2.7×7.6×2.4-0.2×7.6简便方法
- 培训职业
- 2025-05-06 16:10:38
2.7×7.6×2.4-0.2×7.6
=7.6×（2.7×2.4-0.2）
=7.6×（3×3×0.3×0.3×8-0.2）
=7.6×6.28
=7.6×（5+1+0.3-0.02）
=38+7.6+2.28-0.152
=47.88-0.152
=47.728
2.7×7.6×2.4-0.2×7.6
=7.6×（2.7×2.4-0.2）
=7.6×（3×3×0.3×0.3×8-0.2）
=7.6×6.28
=7.6×（5+1+0.3-0.02）
=38+7.6+2.28-0.152
=47.88-0.152
=47.728
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