The greatest non-zero place is the hundredths place, and so it is 8.23, exactly as in the question.
8.00
The correct answer is 1
70
0.64 can be rounded to 1 * * * * * But the greatest place value for a non-zero digit is the tenths.
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
To the nearest ten, 70
8.000
The correct answer is 1
70
The correct answer is 3,205
3000
0.64 can be rounded to 1 * * * * * But the greatest place value for a non-zero digit is the tenths.
It is 0.86345, none of which are zero.
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
To the nearest ten, 70
4841
200
0.5