" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
13-6 o 6-13
7 o -7
R= mayor es 13+(-6)
(-) (-) = +
(+) (-) = -
(-) (+) = -
(+) (+) = +
.......................................................................
13 + (- 6)
13 - 6
7
....................................................................
6 + (- 13)
6 - 13
- 7