The main character in our animations thus far is a boy called Small Number. He is a bright, playful kid, with the ability to recognize patterns and calculate quickly. Other characters introduced so ...

Prime numbers are special numbers, greater than 1, that have exactly two factors, themselves and 1. 19 is a prime number. It can only be divided by 1 and 19. 9 is not a prime number. It can be ...

In many calculations you will be expected to round off your answer to the nearest whole number or to the nearest ten.