If you're on the lookout for some testing extra questions to stretch the minds of your most confident volume-finding mathematicians, these Year 6 Volume of a Cuboid Discussion Problems could be just the ticket! They were designed with group discussion in mind and work wonderfully for that, but there's no reason a maths whizz couldn't attempt them alone, or with an adult as their discussion partner, at home or at school.
Two open-ended problem-solving questions are provided in the pack, along with a sheet of example answers.