It wasn’t given its name until 1706, when Welsh mathematician William Jones began using the Greek symbol for the number. Why ...

Select the circle, then click Insert. The Symbol is inserted into the textbox. Move the text box over the number that you want to be circled; the circle symbol will move with it. If you want to ...

started the tradition of celebrating the number with fellow employees at the science museum. Since then, the celebration has ...

The circumference of a circle is the distance around the circle. It is another name for the perimeter of a circle. The circumference of a circle is calculated using the formula: \(\text{circumference} ...

Now let's have a go at finding some of the number bonds for the number 20. 10 and 10 work! And 12 and 8. And many more. The higher the number the more number bonds it will have. Back to top How ...