Help your class to get to grips with adding tens across a hundred with this helpful Year 3 Add 10s Across a 100 Modelling PowerPoint. It presents a selection of varied fluency, reasoning and problem-solving questions, all designed to get your children recalling number facts and applying them in different situations.

The questions all come with answer slides, giving you opportunities to identify misconceptions and provide feedback. This PowerPoint works wonderfully as an introduction to the subject, especially if you're moving on to our worksheets for this lesson, because all the content covered here corresponds to the questions on those sheets! Ideal!