Réponse :
bonjour
Explications étape par étape :
(-3)-(+6)+(-5)
=-3-6-5
=-14
(46)+(-7)-(+3)-(-5)
=46-7-3+5
=46+5-7-3
=51-10
=41
(-5)-(-8) + (+13)-(+7)
= -5+8+13-7
=-5-7 +8+13
=-12 +21
= 9
12-348-7
=12-353
=-341
-6-845-13
=-664
-7-2-948
= -957
9-12+13+6-3
9+13+6 -12-3
= 28-15
=13