Give children the opportunity to explore and deepen their understanding of adding 3-digit numbers and ones not crossing 10 with our Year 3 3-Digit Numbers and Ones Discussion Problem. This resource includes two questions that will put your children's knowledge to the test. Both questions can be used multiple times due to the various outcomes available. We'd recommend that children have a secure understanding of this concept before attempting these higher-level questions. They can achieve this by working through the accompanying resources in this lesson.

Use this resource as a small group or paired activity in class or in an intervention group. Alternatively, display the questions on the screen and encourage a whole-class discussion ending with comparing their answers to the example we've included.