How much is 1.5 L carton of milk equals to in mL

Fairy Tale of King Henry

King Henry was a jolly old English king most of the time. Even
though metrics had been used in England for a long time, King Henry
had difficulty converting between the different metric units. He had
really become frustrated and confused. He felt, as a king, that he
should be able to do about anything. He asked for help from all of
the smart people in his kingdom. They tried hard, but without a lot of
luck, until one of the great mathematicians in his kingdom came forward. 
He explained to King Henry that everything in metrics was done by either 
multiplying by 10 or dividing by 10 which is easy to do by just moving the 
decimal point. He explained how to convert between the units so well, 
that King Henry was so excited he made up a chart to help others. They 
understood just as well, so he got even more excited. He was so excited 
that:

1. King Henry Danced Merrily Down Center Main.
2. King Henry Danced Lustfully Down Center Main
3. King Henry Danced Gracefully Down Center Main

If you are converting distances or lengths use 1.
If you are converting volumes of capacities use 2.
If you are converting weights use 3.

You are wanting to convert L to mL.  So you will use 2.

For "King" write k, for "Henry" write h, and so on.  That is, write
the first letter of every word in that sentence, except for the word
"Danced", For "Danced" write the first two letters "da"

k h da L d c m

Now write L after the first three and the last three.

kL hL daL L dL cl ml

Now I will color the unit you are given red and the unit you want
to end up with in blue. You can just mark them any way you want to.
In this case, you are given 1.5 L and you want to end up with mL, 
so I'll color the L red and the mL blue.

kL hL daL L dL cl mL

Now put 0 under the red one

kL hL daL L dL cl mL
          0

Now move toward the blue one, by putting a 1 under the dL, a 2 under
the dL and finally a 3 under the mL. 

kL hL daL L dL cl mL
          0  1  2  3

This says you want to move the decimal point in the decimal number you
are given, 1.5 L, 3 places to the right, that is, do the same thing with
it that you did above.  But you'll need to put two zeros on the right,
making it 1.500

Now write a 0 under the decimal point.

     1.5 0 0 
      0

Put a 1 after that (between the 5 and the first 0), a
2 to the right of that and a 3 to the right of that,
like this:

      1.5 0 0
       0 1 2 3
  
Now switch the decimal from above the 0 to above
the 3, and you have

      1 5 0 0.
       0 1 2 3
     
Since the decimal point is on the end you can
make it invisible and the result is

        1500 L           

Edwin