432.1乘以123.4-432.2乘以123.3(怎样简便计算）
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432.1乘以123.4-432.2乘以123.3(怎样简便计算）432.1乘以123.4-432.2乘以123.3(怎样简便计算）432.1乘以123.4-432.2乘以123.3(怎样简便计算）4
432.1乘以123.4-432.2乘以123.3(怎样简便计算）
432.1乘以123.4-432.2乘以123.3(怎样简便计算）
432.1乘以123.4-432.2乘以123.3(怎样简便计算）
432.1×123.4－432.2×123.3
=432.1×123.4－（432.1+0.1）×123.3
=432.1×123.4－432.1×123.3－0.1×123.3
=432.1×（123.4－123.3）－12.33
=432.1×0.1－12.33
=43.21－12.33
=30.88
432.1×123.4-432.2×123.3
=432.1×123.4- 432.1×123.3 - 0.1×123.3
=432.1×0.1 - 0.1×123.3
=0.1×（432.1 - 123.3）
=0.1× 308.8
=30.88
432.1乘以123.4-432.2乘以123.3(怎样简便计算）
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