solve one-step and two-step questions [for example ‘How many more?’ and ‘How many fewer?’] using information presented in scaled bar charts and pictograms and tables

What this means, in plain words

This is data work: collecting information, showing it in a table or a chart, and reading answers back out of it.

This is problem solving: the maths is met inside a situation, so the first job is working out which operation the question is asking for.