" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
DEBEMOS SABER LO SIGUIENTE
(+)+(+) = + + ( )
(+)+(-) = (+) - ( )
(+)-(-) = (+) + ( )
(+) -(+) = (+)-()
A) 5 - 4 +10+26+1
1+36+1
38
B) 10+20+50
30+50
80