Estimating can be a tricky concept to understand because it's so much more than 'a guess', but with Year 4 Estimate Numbers on a Number Line up to 10,000 worksheet you can be confident children will be secure. It includes two fluency questions along with one reasoning for pupils to complete. Although this resource has been designed as a homework activity, it could also be used as an extension or intervention task. All the answers are provided too to help save time and encourage peer or self-marking.