How to I round 613,572,947 to the nearest tens. My teacher confuses me with this. Would it be 50?

Answer 1

47 becomes 50 all right so it is

613,572,950

In scientific notation this would be

61357295 + 10^1

Answer 2

That means all we are sure about is that last 5 and the ones to the left of it.

Answer 3

Thank you. What if i round it to millions. would it be 4 million?

Answer 4

614 * 10^6 = 614 million