Question

Ayudenme a resolverlo porfa
A [(-28)-(+42)]-(-13)
B [(-15)-(-6)]-(-23)
C [(+45)-(-4)]-(+17)
D [(+27)-(-18)]-(-72)

Answer 1

Respuesta:

A.[(-28)-(+42)]-(-13)

[-28-42] +13

= -70+13

= -57

B [(-15)-(-6)]-(-23)

= [-15+6] +23

= -9+6+23

= -9+29

= 20

C [(+45)-(-4)]-(+17)

= [45+4] -17

= 49-17

= 32

D [(+27)-(-18)]-(-72)

= [27+18]+72

= 45+72

= 117