In order to round a number to the nearest thousandths, we have to check the number in the ten thousandths place: 1- If the number in the ten thousandths is less than 5, then the thousandths number will remain the same and all numbers after it will be converted to zeroes. 2- If the number in the ten thousandths is equal to or greater than 5, then the thousandths number will be incremented by 1 and all numbers after it will be converted to zeroes.
Applying this to the given number: <span>1.80431 </span>The number in the ten thousandths position is 3 which is less than 5. Therefore, rounding <span>1.80431 to the nearest thousandths will be: </span>1.80400 which is equivalent to 1.804
