Bonjour,
Calculer:
-3+(-23)+7-(-5)+3= -3-23+7+5+3= -23+12= - 11
-7+4.5-25+20.5= 4.5+20.5-7-25= -7-25+4.5+20.5= -32+25= -7
17-(29-40)+(-16)+5= 17-( -11 ) +(-16) + 5= 17+11-16+5= -16+17+11+5= -16+16+17= 17
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Bonjour,
Calculer:
-3+(-23)+7-(-5)+3= -3-23+7+5+3= -23+12= - 11
-7+4.5-25+20.5= 4.5+20.5-7-25= -7-25+4.5+20.5= -32+25= -7
17-(29-40)+(-16)+5= 17-( -11 ) +(-16) + 5= 17+11-16+5= -16+17+11+5= -16+16+17= 17