Answer:
When rounding a number to two decimal places, you look at the digit in the third decimal place. If it is 5 or greater, you round up the second decimal place. If it is less than 5, you leave the second decimal place unchanged.
In the case of 19.924:
1. The digit in the third decimal place is 4.
2. Since 4 is less than 5, we leave the second decimal place unchanged.
Therefore, rounding 19.924 to two decimal places gives us 19.92.
