Asked by ruby

How to I round 613,572,947 to the nearest tens. My teacher confuses me with this. Would it be 50?
Answered by Damon
47 becomes 50 all right so it is

613,572,950

In scientific notation this would be

61357295 + 10^1
Answered by Damon
That means all we are sure about is that last 5 and the ones to the left of it.
Answered by ruby
Thank you. What if i round it to millions. would it be 4 million?
Answered by Damon
614 * 10^6 = 614 million
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