Betweenies

You have $6. 40 in your pocket. What notes or coins could it be?   Can you show 3 different{...}

  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.{...}

Make a picture out of paper using squares and circles.   Make halves, ¼ and ⅛ make it into a{...}