If you round to zero decimal places, you are simply rounding to the nearest whole number. Since the tenths decimal place is less than 5, you would round down and get an answer:
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To round the number 2.07 to seven decimal places, we look at the eighth decimal place, which is 0. Since 0 is less than 5, we do not round up. Therefore, the number remains 2.0700000 when rounded to seven decimal places.
To round 16.7049 to 2 decimal places, you need to look at the third decimal place, which is 0. Since 0 is less than 5, you simply truncate all digits after the second decimal place. Therefore, 16.7049 rounded to 2 decimal places is 16.70.
5.20 * * * * * The answer should be 5.2 - the trailing 0 implies that it is accurate to two decimal places which, after rounding, it is not.
Rounding never increases the number of decimal places.0.6 is not only already rounded to two decimal places, it'salready rounded to one decimal place.
You round 0.11111111 to 2 decimal places by removing all the numbers beyond the second position to the right of the decimal point - which would give you 0.11. Since the third digit to the right of the decimal point is less than "5", you will leave the answer as "0.11". If the third digit to the right of the decimal were "5" or greater - like "0.11611111" - then you would round the 2nd digit up one, so the answer would be "0.12".