The average distance between the Sun and Mars is about 228 million km. What is this distance in standard form? Give your answer in kilometre s (km).

The question asks for the average distance between Sun and Mars, which is given as 228 million kilometres, to be written in standard form. Standard form is a way of writing numbers that are too big or too small to be conveniently written in normal form. This form of representation expresses a number between 1 and 10, multiplied by a power of 10. Here, the average distance between Sun and Mars, which is 228 million kilometres or 228,000,000 kilometres, needs to be written in standard form as kilometers. This is because there are 8 places after the 2.28 until we reach the end of the number 228000000.