Each question shows a pictograph with a key, such as 'each icon stands for 2 children'. Read the counts off the picture, then answer a question that needs more than one row, like how many helpers sold at least 3 tickets.
The tricky part is the wording: 'more than 2' and 'at least 2' give different answers. The wrong answer choices come from the mistakes children usually make, such as counting rows instead of people.

Numbers&Me is free. Sign up to practise more, or set it as homework in under a minute, and it marks itself.