complete puis calcule mentalement 1,4×101=1,4×(100+1)=1,4×..........+1,4×.........=.......................................​

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Grade: Education Subject: mathematiques
complete puis calcule mentalement 1,4×101=1,4×(100+1)=1,4×..........+1,4×.........=.......................................​
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(80)

1.4 x 101 = 1.4 x ( 100 + 1 ) = 1.4 x 100 + 1.4 x 1 = 140  + 1.4 = 141.4

(47)
1,4x101=1,4x(100+1)=1,4x100+1,4x1=140+1,4=141,4