243.875 to the nearest one is 244 because it is closer to 244 than it is to 243.
243.875 to the nearest tenth is 243.9 because it is closer to 243.9 than it is to 243.8
243.875 to the nearest hundreth is 243.88 because it is closer to 243.88 than it is to 243.87
Dam, goldie. This is good! I wish I could write poetry like this! It's so deep. This is honestly incredible.