56.55 rounded to the nearest hundredth is 56.56. When rounding to the nearest hundredth, you look at the digit in the thousandth place, which is 5 in this case. Since 5 is equal to or greater than 5, we round up the digit in the hundredth place by 1. Therefore, 56.55 becomes 56.56 when rounded to the nearest hundredth.
It then is 16.11 rounded to the nearest hundredth
16.64
0.09
1.54
12.04
It is 1.54 rounded to the nearest hundredth
It then is 16.11 rounded to the nearest hundredth
It is already to the nearest hundredth as 9.69
16.64
0.09
1.54
12.04
0.61
2.81
66.33
1.24
74.01