Respuesta :

Answer:

A. 12.5 - 3.1

Step-by-step explanation:

A. 12.5 - 3.1 = 9.4

B. 12.5 - 0.31 = 12.19

C. 12.5 - 0.031 = 12.469

D. 12.5 - 0.0031 = 12.4969