Respuesta :

C
D
B
A

that's the answers, from top to bottom. hope this helps!
8.34 + 13.74 = 22.08 (First Term - C)
83.4 + 1.374 = 84.774 (Second Term - D)
8.34 - 1.374 = 6.996 (Third Term - B)
83.4 - 13.74 = 69.66 (Fourth Term - A)