Show how the following floating-point operations are performed (where significands are truncated to 3decimal digits). Show the results in normalized form.
a. (9.123**10⁻²)-(8.432**10⁻⁷)
b. (9.123**10²)-(0.438**10⁷)
c. (9.123**10⁻¹)**(0.432**10⁵)
d. (9.123**10⁻³)÷(0.438**10⁻⁸)
e. (9.123**10⁻¹)+(0.432**10⁵)