By year 6 children should be able to read and understand problems written in prose that include some elements of real life involving money.
They should be able to read the problem, understand the situation described, be able to see what processes are needed to solve it and then lay out working and answers clearly.
Children do find word problems far harder than just being given a ‘sum’ to do and it is important to discuss with them the best way to lay out any working.
One or two of these questions could be done mentally, but most need more than one process to reach the answer. All involve money and are an excellent way of working with two places after the decimal point.