To help explore numbers within 1000 we played the ‘Head Bands’ game where some of us got a number to stick on our heads and had to ask the rest of the group questions to help work out what the number was.  The rest of the group could only answer ‘Yes’ or ‘No’ so we had to think carefully about the questions we asked e.g. “Am I between 300 and 700?”   “Am I greater than 450?”  “Am I smaller than 600?”  Have a look at some of us below: