What is 6.4 billion divided by 4?

Answer 1

1.6

Answer 2

1.6 billion

You can think about this in a lot of ways, but here's one way to do it in your head:

- 64 is 8 times 8.
- That means 64 is 16 times 4, and 6.4 is 1.6 times 4.
- So 6.4 billion divided by 4 is 1.6 billion.