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Double Back is the 2nd special episode of Numberblocks, as well as the 2nd Learningblocks special overall.
Synopsis[]
It's time for a time travel adventure! Sixty-Four's new time machine keeps sending the Numberblocks back in time. Can they double up in time to fix it?
Characters[]
- Two (smallest number)
- Three
- Four
- Eight
- Nine
- Ten
- Thirteen
- Fourteen
- Sixteen
- Twenty-Five
- Thirty-Two
- Sixty-Four
Math Magic[]
- 13 - 3 = 10
- 2 + 2 = 4
- 10 + 3 = 13
- 4 + 4 = 8
- 8 + 8 = 14
- 16 ÷ 4 = 4
- 4 × 4 = 16
- 16 + 16 = 32
- 32 ÷ 16 = 2
- 2 × 16 = 32
- 32 + 32 = 64
- 64 ÷ 32 = 2
- 16 ÷ 8 = 8
- 8 ÷ 4 = 2
- 4 ÷ 2 = 2
Trivia[]
- This episode's description used to show that it's a crossover with Alphablocks, but it was later removed.
- This tweet from the Numberblocks Twitter gave the impression at the time that this was a mistake, and that there wasn't going to be any crossover special, at least not in the near future. However, crossover specials between Alphablocks and Numberblocks have come out since then.
- This episode was put on iPlayer on Friday, two days before it aired on TV.
- This episode's logo is a parody of the movie "Back to the Future".
- Sixty-Four's time machine is a parody of the DeLorean car.
- This episode has a time-travel plot, where a certain character travels back in time to change an event in the past.
- The type of time-travel featured in the episode is a "time loop", where the main character gets sent back 2 minutes in the past, in an altered timeline, with the only difference being that the main Numberblock is twice their size. This repeats until Sixty-Four is the one heading to Sixty-Four's time machine, to plug the time regulator.
- There are a total of six different timelines in the episode.
- This is the fourth episode to teach about doubling and halving. First being Double Trouble, second being Sixteen and third being Snow Day Doubles.
- This episode marks the debut of the square root sign and the decimal point.
- Sixty-Four is the biggest Numberblock in this episode, and is the biggest Numberblock to appear in any of the specials.
- Thirty-Two says the name of the special when she comes back for the regulator.
- The episode uses dynamic physics in some parts such as when Ten and Three fall into the ball pit and some of the balls roll out.
- The shoe shop from Two Times Shoe Shop, and Octonaughty's lair from Now in 3D have cameo appearances in this episode.
- In this episode, Three still has the rubber duck from The Lair of Shares.
- If you look in the credits, Sharon Clarke and Rasmus Hardiker are credited.
- This special establishes yet another urban area the Numberblocks live in, akin to the Big City from The Wrong Number or the city seen in Odd Side Story.