Question

2 – Calcule: a) ( + 12 ) + ( + 21 ) b) ( + 23 ) + ( + 21) c) ( – 12 ) + ( – 11 ) d) ( – 23 ) + ( – 4 ) e) ( – 21 ) + ( – 12 ) f) ( + 10 ) + ( – 13 ) g) ( + 21 ) + ( – 23 ) h) ( + 40 ) + ( – 17 )

Answer 1

Resposta:

A = +33

b=+20

c=+44

d=-23

e=-27

f= -27

g= -3

h= -2

i=+23

espero ter ajudado

Answer 2

Resposta:

Explicação passo-a-passo:

a= +33

b=+20

c=+44

d=-23

e=-27

f= -27

g= -3

h= -2

i=+23