On a number line, the numbers on either side of 2.135 expressed in hundredths are 2.13 and 2.14Both are equally distant from 2.135 and so, using the round-5-up-to-even rule, the correct value is 2.14.
For more on the rule, see //en.wikipedia.org/wiki/Rounding#Round_half_to_even
1.234
2.155
4.20
-9.10
142.65
721.33
There is a decimal point missing from either after or before the 0: 0.18 → 0.18 to the nearest hundredth - it is already to the nearest hundredth; .018 = 0.018 → 0.02 to the nearest hundredth.
Round this number to the nearest hundredth 0.3636 ? Round this number to the nearest hundredth 0.3636 ?
The nearest hundredth is the same as two decimal places.
The same way you round any number to the nearest hundredth.
6.542 rounded to the nearest whole number would be 7, because the decimal 0.542 is more than 0.5. Any number which has decimal with the first digit being less than 5 would round to same number. Any number which has decimal with the first digit being either as 5 or more than 5 would round up once.
5.83 rounded to nearest hundredth.
When rounding 16.048 to the nearest hundredth, the number becomes 16.05.
4.20
-9.10
142.65
721.33
5.66
2.80