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0.41×25.5+0.35×25.5+2.4×2.55=    .

問題詳情:

0.41×25.5+0.35×25.5+2.4×2.55=    .

0.41×25.5+0.35×25.5+2.4×2.55=    .

【回答】

0.41×25.5+0.35×25.5+2.4×2.55

=0.41×25.5+0.35×25.5+0.24×25.5

=25.5×(0.41+0.35+0.24)

=25.5×1=25.5.

*:(1)0.0398 (2)25.5

知識點:因式分解

題型:填空題

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