What would be 159.45 if you round it to the greatest nonzero place
0.5
200
To the nearest ten, 70
80
What would be 159.45 if you round it to the greatest nonzero place
0.5
200
To the nearest ten, 70
That rounds to 40.
It is 72.
80
The greatest nonzero place is the number closest to the left (or the greatest number) that is not zero. So in this example, that would be the 8. So you would round the 8 up to a 9 (since 6 is greater than 4). So your answer would be 0.9
0.6
It is 1.
What this means is to round to the biggest digit that is not zero (the one furthest to the left that is not zero). So: 2.814 would round up to 3 because the greatest nonzero digit is the two and the digit to the right of that (the 8) is between 5 & 9. Some more examples of rounding to the greatest nonzero place: 0.00080472 ≈ 0.0008 0.330921 ≈ 0.3 (It rounds down as the number to the right of the 3 is between 0 & 4) 9.1 ≈ 9 5.942 ≈ 6
To round off 128,674 to leave one nonzero digit, you would round it to 100,000.