Answered

Simplifier l'écriture de chacune des expressions ci-dessous, puis la calculer.
M = (+8) - ( -5) = 
N = (-7) - ( +6 ) =
P = ( -8) + 3 = 
R = 12- (+9) = 
S = -27 - (-9) =
T = -24,4 + (-24) =

Sagot :

M= (+8)-(-5)=8+5=13
N = (-7)-(+6)=-7-6=-13
P = (-8)+3=-8+3=-5
R = 12-(+9)=12-9=3
S = -27-(-9)=-27+9=-18
T = -24,4+(-24)=-24,4-24=-48,4