Answer: 2

Formula:

a - b = c

( c + b ) or ( c + a )

n - 0.32 = 1.68

0.32 + 1.68

= 2

Checking:

2 - 0.32

= 1.68

Answer:

1.96 is the answer

Step-by-step explanation:

1.96 - 0.32= 1.68