Encourage children to explore their understanding of numbers to 1,000 with this Year 3 Estimate on a Number Line to 1,000 Discussion Problem activity. This resource is designed to test children's knowledge with an in-depth problem-solving style question. We've set this question, in a relatable topic so that children can focus on the skills needed to solve this problem. We'd recommend using this resource once children have a good understanding of the objectives covered in this lesson. Using the other resources available will help children secure this understanding.

Use at the end of your lesson as a paired or small group activity to offer children a challenge. Alternatively, this could be used in an intervention group to extend children's subject knowledge. We've included an example answer so that children can check their answers against it. This could also be used as a tool to show children there are multiple possible answers.