Binary Numbers

Typically when we think of counting on two hands, we count up to 10, but fingers can contain much more information than that! This video shows how to think about counting in binary.

How high can you count on your fingers? It seems like a question with an obvious answer. After all, most of us have ten fingers -- or to be more precise, eight fingers and two thumbs. This gives us a total of ten digits on our two hands, which we use to count to ten. But is that really as high as we can go? James Tanton investigates. 

The idea behind the article is to explain how simple math concepts form the basis behind puzzles, and how they could be understood and taught in a fun way. So we can teach number system like binary or ternary system in the form of fun puzzles which are more easily grasped by the students.

Here is an interesting way one can multiply small and big numbers. Also known as Russian multiplication, the peasants are said to have devised this method.

17366 registered users
6658 resources