2.34*9.9+0.234的简便计算怎么写

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2.34*9.9+0.234的简便计算怎么写2.34*9.9+0.234的简便计算怎么写2.34*9.9+0.234的简便计算怎么写2.34*9.9+0.234=2.34*9.9+2.34x0.1=2

2.34*9.9+0.234的简便计算怎么写
2.34*9.9+0.234的简便计算怎么写

2.34*9.9+0.234的简便计算怎么写
2.34*9.9+0.234
=2.34*9.9+2.34x0.1
=2.34x(9.9+0.1)
=2.34x10
=23.4