Extend understanding of column subtraction with two exchanges with this discussion problem.

This Year 3 Column Subtraction (2 Exchanges) Discussion Problem gives children a real-life context to investigate different possibilities and subtract from a number that ensures they will have to make two exchanges. Some possible answers are provided to make marking easier, as is guidance on what numbers the problem would allow!

A reasoning and problem solving resource and varied fluency worksheet are also available for this concept to support understanding further.