The one's place of 3.8 is the 3. That is the liters. Milliliters means one thousandths of a liter so move the decimal to the right three places. The answer should be 3800 milliliters.
3.8 litres is fractionally more than 1 US gallon.
1900 ml
That is 3.75 ml.
29.57 ml
5
10
That is 9,000 ml
That is 4,250 ml.
That is 47,000 ml,
That is 200 ml.
That is 700 ml
That is 839,000 ml.