Now that children understand how to exchange from one column using column subtraction, their application of that skill can be consolidated by exchanging from two columns!

This Year 3 Column Subtraction (2 Exchanges) Varied Fluency resource gives children plenty of opportunities to exchange from two columns when carrying out subtractions from 3-digit numbers. They will begin with Base 10 equipment then move onto column subtractions already set out, before finishing with setting out their own. Answers are also provided for ease of marking.

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