Primary Resources
Primary Resources: Doubling and Halving
Great teacher resources for helping students learn how to double or halve numbers quickly. Includes worksheets, PowerPoint presentations, and classroom games.
University of Cambridge
University of Cambridge: Nrich: Super Value Codes
On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.
Topmarks Online
Topmarks: Daily 10
Daily 10 has maths questions on a range of maths concepts: addition, subtraction, ordering, partitioning, digit values, rounding, multiplication, division, doubles, halves and fractions. Great starter or plenary activity. Useful for...