Now that children understand how rounding helps them to check an approximate answer to a calculation, why not extend their knowledge with some reasoning and problem solving activities?

This Check Answers Reasoning and Problem Solving resource gives children different opportunities to apply their awareness of how to check answers: analysing if an answer to a calculation is likely to be correct or not, application of rounding to find possible answers to a calculation and a real-life rounding to check answers problem. Answers are provided as well!

Varied fluency and discussion problem resources are also available for this small step.