This article is about the various relationships that Numberblocks characters have with one another.
Within 0-10[]
Zero and One (and other Numberblocks)[]
Zero and One are good friends, but due to Zero's constant absence even since she debuted, there isn't much chronology with them. One created Zero in the latter's episode by subtracting herself from herself (don't overthink it). Zero teaches about her number with One, Two, and Three. But suddenly, while the trio made a din, Zero "zeroed" their instruments, but her zeroness got out of hands to the point where she deleted the entire universe. Zero felt left down, but One was (somehow) able to restore it. She (and Two and Three) were quick to forgive Zero.
Chronologically, Zero won't appear again until "Now You See Us", when she used the wand to accidentally make One to Nine disappear.
Zero comforts One in the Christmas special "The Twelve Days of Christmas" and even enlightens the concert by vanishing the Christmas trees.
One and Two[]
One and Two are best friends, many fans ship them. Two's debut episode started with One wanting to play tennis, only to see she had no one else to play with due to being the only one in Numberland back then. When she discovered a Magic Mirror and saw herself in it she got excited thinking she made a new friend but started feeling sad again when she realised it was only her reflection. However Magic mirrors can actually make reflections come to life so soon one really did have a friend! However tennis wasn't easy to play with just one racket. At first they just played by quickly passing the racket to each other but soon one of the ones tripped landing on top of the other one making Two! He instantly wanted to be friends with One but they needed a way to meet first! After numerous tries they finally got the idea to make another one with the magic mirror and rushed toward it but only one of them made it since the other one tripped and fell into some grass. Finally One and Two could meet and talk face to face, as well as enjoying a good game of tennis of course, as it's twice as fun with two! In the next episode they were still the only ones around but had each-other now and became best friends in the end, and they still are since then.
In Stampolines two was trying to teach one how to rearrange her blocks but with little success. In Twoland, they were gazing at the clouds when one remembered her first day on her own witch made two wonder what it would be like if he was first! After an adventure in two land gave him the answer, Two said there was ONE important thing missing and the two best friends gave each other a hug. In Your Turn the Numberblocks finished preforming More To Explore for the Numberblobs. One was on top of a big stage prop but two caught her when she jumped off. And when the numberblobs decided to put on their own show they talked to each-other about unlocking something new! In The Twelve Days Of Christmas they played in the snow together and pranked Three to beat her to the theatre. One got nervous when she saw the huge theatre and Two showed empathy for her. they also learned how to tell the time together with help from 2 Twelves and Sixty in About Time, in that same special they preformed in a talent show together.
One, Two and Three[]
Despite Three having her fair share of selfish moments (especially in Fruit Salad) deep down inside she actually has a heart of gold for her friends and even acts like a big sister to One and Two. In her debut episode she put on a show for them and it was successful, until Two tripped her by mistake and got worried. However Three only rearranged her blocks and was perfectly fine!
In One, Two, Three she set up some games for them but ended up winning them all herself and eating all the apples. But when she saw they were sad she showed them another apple tree and gave them both new apples but none for herself since she technically already ate three. Despite this two still shared one of his apples with her and Three said the last trick was to make the apples vanish as they ate them together. In Four the episode starts with all of them watching the clouds together.
In Blockzilla Two shared apples with her again while in Stampolines, One feels sad about her lack of shapes so Three encourages her. In the whole of me it was actually one and two that played a siblings role to her! When it was Three's turn to sing her part of the song she started singing a song about herself being the best instead of what she was supposed to. One and Two stopped her and told her to try again but she just did it again so they pulled her offscreen! In Peekaboo, after One falls of of Three, they (albeit quietly) bickered right in the middle of the song as Four and Five watched in concern. in The Twelve Days of Christmas, they raced each other to the theatre.
Three and Four[]
When Four first arrived in Numberland Three was jealous about not being the biggest anymore but soon Four explained that sometimes Four is better than Three like for car wheels, chair legs and table legs. after this realization, Three slowly accepted Four and they became really good friends. A well known example is in The Whole Of Me when Three is about to fall over and Four catches her.
Five and Seven[]
When Seven first arrived, Five was the first person to talk to him, telling him that he is in Numberland. When a rainbow appeared and changed Seven from violet to the 7 colours of the rainbow, Five told him to look in a nearby Magic Mirror, getting him to realise the change. Five and Seven are the 2 biggest prime Numberblocks among the main characters, and the 2 biggest prime Numberblocks whose main arrangements are vertical. In What's the Difference, Five said that she would 'love to be as lucky as Seven' while looking at him with admiration. In Ten Vaulting, Five and Seven participated in the event together, adding up to Twelve. In Five's Handy Shop, when Seven was troubled since he did not have the right Penny Coins to give Five an amount of 7 pennies for the lucky horseshoe, Five assured him that it was alright as she explained how change worked. Later, Seven gave the lucky horseshoe to Five to wish her good luck with her new shop, as the other Numberblocks also gave her what they bought.
Six and Eight[]
Six and Eight are a popular ship in the Numberblocks community because in Eight Eight hugs Six with all of his tentacles. Also in The Way Of The Rectangle and Seventeen they are walking on the beach and looking at paintings together. In One Giant Step Squad Six is about to faint so Eight catches her. In Peekaboo, Six is seen hiding behind Eight. Finally in What's My Number it's revealed that Six is the only Numberblock that knows what Eight's house looks like.
Nine and Ten[]
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Four and Nine[]
When Four was sad about being the only square around, Eight tried to cheer him up by attempting to make one himself. However, Eight is not a square number but he can make a square with a hole, so One quickly fixed that problem and made Four a new square friend called Nine! he explained in song that 2 lots of 2 and 3 lots of 3 can all make a square. After this they became best friends. In Mirror, Mirror, they tried to open the barricaded door together, while in The three threes they weere flying a kite. In Now in 3D, they were playing a board game with Six and tried to stop Octonaughty. In Sixteen four was so exited to meet another square that he almost fell over but Nine showed up and caught him and they all square danced together. In square club sixteen invited them both for a party in square club.
One, Four and Nine[]
They are the first three Numberblocks in Square Club, as they are seen together at the end of the episode The Three Threes.
Eight and Two[]
A notable one between Eight and Two, there have been some notable monents, like both of them visiting the zoo, and overall seem like good friends or even buddies at that point.
Within 11-20[]
Twelve and Eighteen[]
Twelve and Eighteen are siblings. In Eighteen's debut episode, Twelve was meditating when he suddenly raced past and disturbed her. Despite this they fave a friendly relationship since they raced each other in Loop the Loop, helped Twenty-Four and Twenty-Three make rectangles in How Rectangly! and meditated with Twenty-Four in Now in 3D.
Thirteen and Fourteen[]
These 2 are best friends. Fourteen stoped Thirteen from splitting in On Your Head. in Fourteen, when Fourteen counts from 1-14 he is a bit nervous but when he says 13 he becomes a bit more confident, this causes some fans to ship them.
Sixteen and Eighteen[]
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Within 41-50[]
Forty-Two and Forty-Eight[]
One day, Forty-Eight was racing on the rays when she got a fun idea to race to Puzzle Square. but she wanted someone to race aginst. Sudddenly her wish came true when she saw a suspicious rainbow hexagon in the sky and was surprised to see it despence seven Sixes. The Sixes landed on the rays and joined up to make Forty-Two who managed to jump off the rays just in time. The two Numberblocks said hello to each other and showed off their abilities. Suddenly Forty-Two teleported away again and Forty-Eight saw his hexagon apear again above a snowy mountain. She raced after her new friend. Meanwhile Forty-Two reapeard as six Sevens but unfortunetly they got stuck in snow. Thankfully Forty-Eight was on her way and saved the day with her six Eights, leaving Forty-Two really grateful! He asked how he could ever thank her to which Forty-Eight challenged him to the race to Puzzle Square. She is a fast racer but there's more than one way to get around! Forty-Eight was just about to win the race when she suddenly saw Forty-Two's hexagon overtake her and drop him directly into Puzzle Square! He won! Forty-Eight congratulated him and called a rematch but had just one question first. Forty-Two was expecting her to ask how he got there so fast, but what she was really wondering was where Forty-Two got a rubber duck! It turned out he accidentally teleported into his bathtub on his way to Puzzle Square! With that cleared away they can finally have a rematch now and they playfully teased each other as they had another race. later in The Rolling Sixes, Forty-Two disappeared from behind his door, so Forty-Eight said... "Oh dear! I think my friend Forty-Two is having teleporting trouble again!" This proves they are officially best friends now.
Mixed[]
One, Three, Six, Ten and Fifteen[]
The 5 are friends and were part of Step Squad Club, they are seen together in The Pattern of Patterns.
One, Four, Nine and Sixteen[]
The 4 are best friends and part of Square Club, as they are seen together at the end of Square Club.
One, Four, Nine, Sixteen and Twenty-Five[]
The 5 are best friends and part of Square Club, as they are seen together at the end of We're Going on a Square Hunt.
Twelve, Eighteen and Twenty-Four[]
The first 2 are siblings and are super rectangles, but Twenty-Four is a super duper one! They were meditating together in Now in 3D and in Rectangle Racers, Twenty-Four and Eighteen have a race.
Twenty-One and Compounds[]
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