Sagot :
A-5-(-7)+2-9 = 5 +7 + 2 - 9 = 5
B-158 -(-6) - 4+6: = 158 + 6 - 4 + 6 = 158 + 6 + 6 - 4 = 166
C--6-4-(-3) - 6= -6-4 + 3 - 6 = -6 - 4 - 6 + 3 = -13
Bonjour,
Simplifier, puis calculer chaque expression
A-5-(-7)+2-9
A = - 5 + 7 + 2 - 9
A = - 5 - 9 + 2 + 7
A = - 5 - 9 + 9
A = - 5
B-158 -(-6) - 4+6
B = 158 + 6 - 4 + 6
B = 158 + 16
B = 174
C--6-4-(-3) - 6.
C = - 6 - 4 + 3 - 6
C = - 6 - 6 - 4 + 3
C = - 16 + 3
C = - 13.