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Mental Calculation Files

11 Problems

Added 01.09.11

  • A selection of problems

Arithmagons

Added 29.09.11

  • Various arithmagon worksheets including decimal and algebraic

Balancing

Added 17.01.16

  • A task focused on addition of directed numbers based on the format developed by Whit McMahan

Blip Blop Problems

Added 29.09.11

  • Using made up units to enhance understanding

Bricks

Added 01.09.11

  • A number investigation

Calculation Matching Pairs

Added 27.07.11

  • A matching pairs activity

Chains

Added 01.09.11

  • A number investigation

Circle Sums

Added 15.05.21

  • A classic number puzzle

Convert Pounds to Euros

Added 29.07.11

  • Fill in the missing data

Magic Sqaure

Added 01.09.11

  • An excel sheet with lots of puzzles and interaction

Magic Square Investigation

Added 01.09.11

  • Investigate the relationship between three variables and the grid

Magic Squares

Added 25.08.11

  • A simple magic squares activity for younger pupils

Make 100

Added 01.09.11

  • A number investigation

Make 200

Added 02.08.11

  • A classic number puzzle

Make the Middle

Added 12.09.11

  • A classic number puzzle