4.2x2.3除以0.35的简便计算
答案:1 悬赏:10
解决时间 2021-03-22 02:51
- 提问者网友：浮克旳回音
- 2021-03-21 16:42
4.2x2.3除以0.35的简便计算
最佳答案
- 二级知识专家网友：长青诗
- 2021-03-21 18:21
4.2×2.3÷0.35
=0.7×6×2.3÷0.7÷0.5
=(0.7÷0.7)×(6×2.3×2)÷(0.5×2)
=1×6×4.6÷1
=6×(5-0.4)
=6×5-6×0.4
=30-2.4
=27.6
=0.7×6×2.3÷0.7÷0.5
=(0.7÷0.7)×(6×2.3×2)÷(0.5×2)
=1×6×4.6÷1
=6×(5-0.4)
=6×5-6×0.4
=30-2.4
=27.6
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