Respuesta:
+ 33, 77
Explicación paso a paso:
( 12 . 66 ) - ( - 21.21 ) =
12.66 + 21.21 = + 33.77.
ley de signos :
+ × - = -
- × - = + .
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Respuesta:
+ 33, 77
Explicación paso a paso:
( 12 . 66 ) - ( - 21.21 ) =
12.66 + 21.21 = + 33.77.
ley de signos :
+ × - = -
- × - = + .