Converting between units of metric mass

Maths

Which of the below shows a correct conversion between g and kg?

A recipe for 12 fairy cakes is listed but I cannot make out how much flour I will need, which of the below is it likely to be?

How many kilograms is 420 grams equivalent to?

A recipe asks for 210 g of flour and 0.2 kg of sugar, what is the total amount of flour and sugar needed?

Which of the below is equivalent to 30 miles?

On Monday, I completed a 5 mile walk and on Tuesday I completed a further 16 km. How far did I walk in total on both of those days?

For charity, I completed a 60 mile walk. My cousin completed a 72 km walk. What was the total distance of our walk?

The distance from London to Coventry is approx. 176 km. How far is this in miles (approx.)?

Anna completed a sponsored run. For every 5 miles, she was given £15. She completed 72 km in total. How much money did she raise from her run?