SASMO 2018 Secondary 4 (Grade 10) Contest Question 2

=| The following calculations lead to the conclusion that 2018 = 0. Which one of
the following transition steps is wrong?
V=2018 = V-2018 =› = = = (65)
v=2018 _V2018 _ ¥2018
. ayer PS @
2018
v2018 x v-1 = et (3)
V2018 x V-1 x V-1 = 2018 (4)
V2018 x (-1) = V2018 (6)

— 2018 = V2018 == 0=~¥2018 + ¥2018 (6)
V2i8=0 = 2018=0 ”)