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

4 answers

47 becomes 50 all right so it is

613,572,950

In scientific notation this would be

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