Question

(+9)+(-5)
(+12)+(8)
(-3)+(+9)
(-16+(-35)
(+42)+(-18)
(-54)+(-89)
(+91)+(-15)
(-74)+(348)
(-743)+(+66)

Porfi ayuda

Answer 1

Respuesta:

(+9)+(-5)

9−5

=9+−5

R=4

(+12)+(8)

12+8

=12+8

R=20

(-3)+(+9)

−3+9

=−3+9

R=6

(-16+(-35)

−16−35

=−16+−35

R=−51

(+42)+(-18)

42−18

=42+−18

R=24

(-54)+(-89)

−54−89

=−54+−89

R=−143

(+91)+(-15)

91−15

=91+−15

R=76

(-74)+(348)

−74+348

=−74+348

R=274

(-743)+(+66)

−743+66

=−743+66

R=−677

Explicación paso a paso: