Simple calculation of the following topics: 1、2.9x0.45+0.29x4.2+0.029x13 2、3.84x9.6+0.96x61.6

one
=0.29*4.5+0.29*4.2+0.29*1.3
=0.29*(4.5+4.2+1.3)
=2.9
two
3.84×9.6+0.96×61.6
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96

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