Did you know?
There is no biggest number. You can always add 1 more!
On most dice, the numbers on opposite faces add up to 7. Check: 1 and 6, 2 and 5!
An abacus is a counting frame with sliding beads. People have used it for a very long time.
Try this: Number Pyramid
Draw three boxes in a row. Write 1, 2 and 3 in them. Above them, draw two boxes. Each box is the sum of the two boxes below it. Then draw one box on top and do the same. What number is at the top?
Show answer
8, because 1+2=3, 2+3=5, 3+5=8
Go further: Zero, the Hero
Long ago, Indian mathematicians treated zero as a real number. They wrote rules for adding and taking away zero. Today, zero is everywhere. Without it, how would you write 10 or 100? Go on a zero hunt today. Count the zeros you can spot on clocks, calendars and number plates!
Quick quiz
Get ready!