Réponses

2012-10-22T21:17:59+02:00

F=53x101=53x(100+1)=53x100+53x1=5300+53=5353

G=17x6,76-17x1,76=17x(6,76-1,76)=17x5=17x10/2=170/2=85

H=22,5x999=22,5x(1000-1)=22,5x1000-22,5x1=22500-22,5=22477,5

I=123x188+123x12=123x(188+12)=123x200=123x2x100=246x100=24600