12-8=9-5
18-13=7-2
17-14=14-11
45-28=25-8
2011-2010=11-10
c)8-11=0-3
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12 - 8 = 9 - 5
18 -13 = 7 - 2
17 - 14 = 14 - 11
45 - 28 = 25 -8
275 - 196 = 175 - 96
2 011 - 2 010 = 11 - 10
7 - 7 = 0 - 3 = - 3
15 - (+15) = 0 - 3 = - 3
on l'utilise dans les températures par exemple
Verified answer
12-8=9-5
18-13=7-2
17-14=14-11
45-28=25-8
2011-2010=11-10
c)8-11=0-3