Sagot :
Réponse:
Bonjour,
a) (+4)+(+9)
= 4+9
= 13
b) (-2)+(+3)
= -2+3
= 1
c) (-4)+(-11)
=-4-11
=-15
d) (+1)+(-7)
= 1-7
= -6
e) (-10)+(+10)
=-10+10
=0
f) 0 - (-72)
=0+72
=72
Réponse:
Bonjour,
a) (+4)+(+9)
= 4+9
= 13
b) (-2)+(+3)
= -2+3
= 1
c) (-4)+(-11)
=-4-11
=-15
d) (+1)+(-7)
= 1-7
= -6
e) (-10)+(+10)
=-10+10
=0
f) 0 - (-72)
=0+72
=72