Episode Gallery Transcript

Just Add One is the twenty-first episode of the series and overall the sixth episode of Series 2.


One's idea of fun is singing, dancing and making friends by adding One.


  • Song: Just Add One
  • The Numberblocks' ideas of fun in the song:
    1. Being one
    2. A song and dance
    3. Juggling things
    4. Being square
    5. High fives
    6. Playing games
    7. Making rainbows
    8. Being Octoblock
    9. Not sneezing
    10. Being ten
  • 8 is the only Numberblock who has no vertical arrangement in this episode.
  • This episode was mentioned in More to Explore.
  • The song lyrics and images for this episode appear in pages 6-9 of the Cbeebies Special Magazine Issue 104. However it has some changes:
    • The intro line before 1 appears is not sung.
    • 4 doesn't sing "Ouch, ouch, ouch, ouch, 4 corners." He sings "1, 2, 3, 4, 4 corners."
    • 5 doesn't sing "If you add another one / The number gets one bigger / And if you keep on adding one / You can get to any figure."
    • 9 doesn't sneeze.
  • When 5 arranges herself into 1+2+2, she has her design from "Hide and Seek", in other episodes, Her face is on her top block. Seven and Nine follow this change too.
  • The instrumental version of the song can be heard on the menu of the game Numberblocks Make & Play.
Numberblocks episodes
Here are all the Numberblocks episodes.

Series 1

High Five!

One, Another One, Two, Three, One, Two, Three!, Four, Five, Three Little Pigs, Off We Go, How to Count, Stampolines, The Whole of Me, The Terrible Twos, Holes, Hide and Seek

Ten out of Ten

Six, Seven, Eight, Nine, Ten, Just Add One, Blast Off, Counting Sheep, Double Trouble, The Three Threes, Odds and Evens, Fluffies, The Two Tree, Numberblock Castle, Ten Green Bottles

Series 2

Number Fun

Once Upon A Time, Blockzilla, The Numberblocks Express, Fruit Salad, Zero, Now We Are Six To Ten, Numberblobs, Building Blocks, Peekaboo!, Hiccups, What's the Difference?, Numberblock Rally, Five and Friends, Octoblock to the Rescue!, Ten Again

Fifteen and Friends

Flatland, Pattern Palace, The Legend of Big Tum, Mirror, Mirror, The Wrong Number, Eleven, Twelve, The Way of the Rectangle, Ride the Rays, Block Star, Thirteen, Fourteen, Fifteen, Tween Scenes, Step Squads

Series 3

Season 5

Fifteen's Minute of Fame, On Your Head, Ten's Place, Balancing Bridge, Sixteen, Square Club, Seventeen, Eighteen, Loop the Loop, Nineteen, Twenty, Tall Stories, Flights of Fancy, I Can Count to Twenty, Heist

Season 6

Sign of the Times, Fun Times Fair, The Lair of Shares, Terrible Twosday, Divide and Drive, Twenty-One and On, We're Going on a Square Hunt, Thirty's Big Top, Land of the Giants, Fifty, Sixty's High Score, The Big One, One Hundred, One Thousand and One, More To Explore

Upcoming (confirmed)


Numberblocks Theme Song

Fourth Wall Breaks

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