Perform the following computations (i) exactly, (ii) using three-digit chopping arithmetic, and (iii) using three-digit rounding arithmetic.

Question:

Perform the following computations (i) exactly, (ii) using three-digit chopping arithmetic, and (iii) using three-digit rounding arithmetic. (iv) Compute the relative errors in parts (ii) and (iii).
a. 4/5 + 1/3
b. 4/5· 1/3
c. (1/3− 3/11) + 3/20
d. (1/3 + 3/11) - 3/20