Answered

(+12.8)-(-7,2)
(-4.08} -(-2.15)
(-2.15} -(-9.7)
(-38.5)-(+12.7)
(-102.8)-(+17.2)​

Sagot :

MEHDI34790

Réponse:

12.8 + 7,2= 20

-4.08 + 2.15 = -1,93

-2.15 + 9.7 = 7,55

-38.5 - 12.7 = -51,2

-102.8 - 17.2 = -120