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"I don't think I've seen Ten (character) before!"Four
This page is about the character(s). For the episode, see Ten (episode).

Ten, or 10, is a Numberblock that is made up of 10 blocks. She debuts in the episode with the same name. She can turn herself into a rocket & fly into space.


10 is made of ten white blocks with a red border. She has star-shaped red eyes and pink lips. She has dark red limbs and wears two gloves in her block colors. Sometimes her 1-block outlines disappear, which makes her a 10-block. (This also occurs to Eleven, Twelve and Thirteen in the episode On Your Head.)

Episode Appearances

Total number of appearances: 77

Fanmade Designs

Has its own page.


  • 10 is usually seen arranged vertically and aligned 2x5. The only time she is arranged in a triangle (1+2+3+4) is in her eponymous episode Ten, the episodes Building Blocks, Step Squads, Steps Versus Squares, and One Giant Step Squad.
  • In the intro and some episodes, 10 stays standing vertically when she should be aligned 2x5 since she is a composite Numberblock. However, it is possible that the purpose of her often standing vertically is to show that she is the biggest Numberblock out of the first ten. These are the following episodes where she is the only composite Numberblock to stay arranged vertical:
    • Theme song (Ten out of Ten version)
    • Blast Off
    • The Three Threes
    • Numberblocks Castle
    • Ten Green Bottles
    • Numberblobs
    • Peekaboo!
    • What's the Difference?
    • Five and Friends
  • Her voice actor, Teresa Gallagher, also voices 0, 6, 15, 28, 60 and 10,000.
    • Her voice actor also voices:
      • Some female Alphablocks in Alphablocks
      • Darzi (Disney's The Jungle Book)
      • Dashi (Octonauts)
      • Nicole Watterson (Cartoon Network's The Amazing World Of Gumball)
      • Egbert (Poppy Cat)
      • Noddy (Noddy in Toyland)
      • Miss Chatterbox, Miss Daredevil, Miss Naughty (Season 2), and Miss Whoops (UK Version of The Mr. Men Show)
      • Emily, Rosie, Belle, Mavis, Annie, Clarabel (UK Version of Thomas & Friends)
      • Lucy Selby (Postman Pat The Movie)
      • Mater's Computer (Disney's Cars 2)
      • The Tiddlytubbies(Teletubbies)
  • 10 and 5 are similar in some ways.
    • They both wear gloves, but 5 has only one glove, while 10 has two gloves.
    • They both come after a square number.
    • They are both the biggest number in their respective seasons.
  • 10's numeral means:
    • 2 in Binary.
    • 4 in Quaternary.
    • 6 in Senary.
    • 8 in Octal.
    • 12 in Dozenal.
      • In the Duodecimal system, the numeral for 10 is a different symbol and is named "dek" and looks like ↊.
    • 16 in Hexadecimal.
      • In the hexadecimal system, the numeral for 10 is A.
    • 20 in Vigesimal.
  • 10 somewhat resembles red pencil sweets, except the direction is different.
  • A notable change in Season 3 is that her helmet becomes red.
  • The main reason why Ten doesn't resemble One thoroughly except for the colours is because she doesn't have "One" in her name. If she was called "One Ten", she would resemble One more.
  • Her best friend could be Three.

Related Characters

Orders of Magnitude