Dutch double true alphametics

An alphametic is an addition in words, verbal arithmetic. It is a puzzle in which you have to replace the letters by digits, and get a correct calculation.
This Friday I bring you a number “double true” alphametics from the dutch language.

1) Three^**/*****
EEN + EEN + EEN = DRIE

2) Six^*/*****
EEN + EEN + EEN + EEN + EEN + EEN = ZES

3) Seven^**/*****
TWEE + TWEE + EEN + EEN + EEN = ZEVEN

4) Nine^***/*****
DRIE + DRIE + DRIE = NEGEN

5) Thirty (1)^**/*****
TWAALF + ELF + DRIE + TWEE + TWEE = DERTIG

6) Thirty (2)^***/*****
ELF + NEGEN + TWEE + TWEE + TWEE + TWEE + TWEE = DERTIG

Though you don’t need them, here is the list of Dutch counting words:
1 Een
2 Twee
3 Drie
4 Vier
5 Vijf
6 Zes
7 Zeven
8 Acht
9 Negen
10 Tien
11 Elf
12 Twaalf
13 Dertien
20 Twintig
30 Dertig

New puzzles are published at least once a month on Fridays. Solutions are published after one or more weeks. You are welcome to remark on the difficulty level of the puzzles, discuss alternate solutions, and so on. Puzzles are rated on a scale of 1 to 5 stars. You can check your solutions here

Lyfoes

New puzzle types are often an variation on an existing theme or situation.

Take for example the Towers of Hanoi. Citing wikipedia: It consists of three rods and a number of disks of different sizes, which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top, thus making a conical shape.

The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules:
* Only one disk can be moved at a time.
* Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack or on an empty rod.
* No larger disk may be placed on top of a smaller disk.

A new variation on this puzzle is Lyfoes. The stacks have been replaced with tubes, and the disks have been replaced with coloured balls. Initially there are one or two empty tubes, and the coloured balls are all mixed up. The object is to sort the balls according to colour.

Example of start:

The app has 5 difficulty levels, from very easy to insane.
Well worth a look.