Question

Follow the directions and correct the given incorrect equation, written in Roman numerals:

(a) Remove two of these matchsticks to make a valid equation:

IX - VI = V

(b) Move one matchstick to make the equation valid. Find two different solutions.

VI - IV = XI

Answer 1

Correct answer is

(a) X–V = V

(b) VI + IV = X, VI + V = XI