Réponses

2013-11-17T16:46:13+01:00
a/146-(71-36)
=146-(35)
=111

b/250-(19,3+31,8)
=250- 51.1
=198.9

c/5,7-(7,6-4,81)+(6.04-25)
=5.7-(2.79)+(-18.86)
=5.7-2.79-18.86
=-15.95