Fill in the blanks to make the statement true :
(a) 1 metre = _____ millimetres.
(b) 1 centimetre = _____ millimetres.
(c) 1 kilometre = _____ millimetres.
(a) 1 metre = 1000 millimetres.
(b) 1 centimetre =10 millimetres.
(c) 1 kilometre = 1000000 millimetres.