Speaker: Addition is the process of adding 2 or more numbers or amounts together to get a total. If I start on the ground floor I've got to go up 9 floors to get to the top. That's 0 add 9, which ...
NARRATION: Back in the deepest, darkest depths of time, there lived a great mathemagician called Hypatia. Numbers fell under her spell one by one. With them, Hypatia could do anything. Now, Hypatia is ...