Let your class put their subtraction skills to the test with this Year 4 Subtract Two 4-Digit Numbers - No Exchange Discussion Problem. This resource includes two in-depth and open-ended problem-solving questions that will inspire curiosity and enable children to push their subtraction abilities to the next level. Each question can be used multiple times due to the various outcomes available.

A great resource for encouraging mathematical discussion in your classroom and ideal to use when children are secure in their understanding of this subtraction objective. You can use this as a group or paired activity, open up the discussion to the whole class or use in an intervention group to stretch children's knowledge even further. An example answer is included too.