2.9×1.2+1.2+6.1×1.2怎么简算?

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2.9×1.2+1.2+6.1×1.2怎么简算?2.9×1.2+1.2+6.1×1.2怎么简算?2.9×1.2+1.2+6.1×1.2怎么简算?..2.9×1.2+1.2+6.1×1.2=(2.9+1

2.9×1.2+1.2+6.1×1.2怎么简算?
2.9×1.2+1.2+6.1×1.2怎么简算?

2.9×1.2+1.2+6.1×1.2怎么简算?
..2.9×1.2+1.2+6.1×1.2 =(2.9+1+6.1)*1.2 =10*1.2 =12

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