0.147×368+0.632×147用简便计算怎么写?

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0.147×368+0.632×147用简便计算怎么写?

0.147×368+0.632×147
=147 ×﹙0.368+0.632﹚
=147×1
=147

0.368x147+0.632x147
=(0.368+0.632)x147
=1x147
=147

(0.368+0.632)*147