Mr Willy Wonka- Design your own chocolate bar

 Launch Ask a student to give you a 2-digit number, i.e., 47. Take the reverse (74) and find the positive{...}

Launch: How many people do you think will fit in this train?  Where would you put your seats?  How many{...}

At your party you have _________ kids attending. How many sausage rolls does each child get? Can you work out{...}