Inspire young minds to apply their knowledge and be curious about addition with this Year 3 Add 1s Across a 10 Discussion Problem. This resource includes two in-depth problem-solving questions that require a secure understanding of adding ones across 10s and the ability to work through challenging questions. Each problem can be used multiple times due to the different outcomes available for each question.

Use this resource in class as a small group or paired activity after children have worked through the other resources within this lesson. Alternatively, this can be used in an intervention group to encourage in-depth mathematical discussions, or display a problem on the screen and open the conversation up to the whole class. An example answer sheet is provided for children to compare their outcomes to.