Jenga Subtraction

Watch a clip of Mrs Murray going into the supermarket weighing different objects. Mixed Groups Have a fruit shop setup{...}

  https://www.youtube.com/watch?v=QQdiRTHWhwI Here are the instructions as to how to play this game. You will need a deck of cards.{...}

Have a whole range of different containers. The children are to choose a container thinking which one they think holds{...}