Answered

Pouvez-vous m’aider s’il vous plaît ?


A=(+12)+(-5)-(+8)+(-12)
B=(+4)-(+9)+(-10)-(-16)
C=(-5)+(+13)-(-5)+(-4)
D=(+7)-(-3)+(-7)-(+5)


Merci<3

Sagot :

A= (+12) + (-5) - (+8) + (-12)
A= 7-8-12
A=-1-12
A=-13

B= (+4) - (+9) + (-10) - (-16)
B= -5-10+16
B=-15+16
B=1

C= (-5) + (+13) - (-5) + (-4)
C= 8+5-4
C=13-4
C=9

D= (+7) - (-3) + (-7) - (+5)
D= 4-7-5
D=-3-5
D=-8

ATTENTION:
+ + = +
- - = +
- + = -
+ - = -