(a)[1]
Express 1226 km in metres.
(b)[2]
Calculate how long a car moving at 100 km/h would take to cover 38400 km. Give the result in days.
(c)[2]
Express 149.6 million in standard form.
(d(i))[1]
Express $1 \times 10^{-4}$ as an ordinary number.
(d(ii))[1]
Convert $1 \times 10^{-4}$ metres into millimetres.