Bonjour pourriez vous me dire si mes calculs sont correctes merci

6
6-3=3
-5*3=-15
-15/4+6
=-15/4+24/4
=9/4


2
2-3=-1
-5*-1=5
5/4+2
=5/4+8/4
=13/4


-7
-7-3=-10
-5*-10=50
50/4+(-7)
=50/4+(-28/4)
=22/4


3,5
3,5-3=0,5
-5*0,5=-2,5
-2,5/4+3,5
=-2,5/4+14/4
= 11/4


-2,3
-2,3-3=-5,3
-5*-5,3=26,5
=26,5/4+(-2,3)
=26,5/4+(-9,2/4)
=17,3/4​
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