Question

Números con signo

( - 7 ) + ( 91 ) =
( 45 ) + ( - 25 ) =
( - 18 ) + ( - 6 ) =
( - 24 ) + ( 12 ) =
( + 18 ) + ( - 18 ) =
- 40 - 12 =
0.5 - 1.2 =
( - 35 ) + ( 19 ) + ( - 16 ) + ( - 13 ) =
13 + 5 - 9 + 4 - 21 =
​

Answer 1

Respuesta:

( - 7 ) + ( 91 ) =84

( 45 ) + ( - 25 ) =20

( - 18 ) + ( - 6 ) = -24

( - 24 ) + ( 12 ) = -12

( + 18 ) + ( - 18 ) =0

- 40 - 12 =-52

0.5 - 1.2 = -(1,2-0,5)=0,7

( - 35 ) + ( 19 ) + ( - 16 ) + ( - 13 ) =-35+19-16-13=-45

13 + 5 - 9 + 4 - 21 =-8