The WORST episodes of Numberblocks

Every episode of Numberblocks ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Numberblocks!

The adventures of ten friends, in Numberland who can always count on each other. Each friend has a different ability that helps them on their adventures.

Last Updated: 3/4/2026Network: CBeebiesStatus: Continuing
The Space Signal
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#1 - The Space Signal

Season 8 - Episode 30 - Aired 2/27/2026

The Numberblocks Space Division finally solve the mystery of the space signal.

Five's Super Sorter
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#2 - Five's Super Sorter

Season 8 - Episode 16 - Aired 2/9/2026

The toys in the toy library are all jumbled up. Can Sorty the Super Sorter help?

Back in the Box!
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#3 - Back in the Box!

Season 8 - Episode 17 - Aired 2/10/2026

One finds it tricky to count lots of things at once, but a five-bar gate holds the answer.

Five's Fruit Festival
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#4 - Five's Fruit Festival

Season 8 - Episode 18 - Aired 2/11/2026

How much fruit will Five need for a fruit festival, and how can Four help find a solution?

I'll Vote for That!
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#5 - I'll Vote for That!

Season 8 - Episode 19 - Aired 2/12/2026

When the friends can't decide what to play next, Ten suggests that they all vote.

The Pyramid of Puzzles
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#6 - The Pyramid of Puzzles

Season 8 - Episode 20 - Aired 2/13/2026

Exploring the secrets of a mysterious pyramid, the friends find clues in bar charts.

One's Fix-It Shop
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#7 - One's Fix-It Shop

Season 8 - Episode 21 - Aired 2/16/2026

One's friends have broken toys that need to be fixed, can she help them all?

Happy Campers
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#8 - Happy Campers

Season 8 - Episode 22 - Aired 2/17/2026

On a camping trip, the Numberblocks need to work out how to share things fairly.

The Mystery of Fraction Island
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#9 - The Mystery of Fraction Island

Season 8 - Episode 23 - Aired 2/18/2026

The Numberblocks are exploring Fraction Island and meet new Fraction Friends on the way!

Fractions Are a Piece of Cake
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#10 - Fractions Are a Piece of Cake

Season 8 - Episode 24 - Aired 2/19/2026

At a party on Fraction Island, One joins the Fraction Friends in a song about fractions!

Octonaughty and the Fractionator
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#11 - Octonaughty and the Fractionator

Season 8 - Episode 25 - Aired 2/20/2026

Can Octoblock save the day when Octonaughty uses the Fractionator to split things up?

You're Five Ones and I'm Five Tens
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#12 - You're Five Ones and I'm Five Tens

Season 8 - Episode 26 - Aired 2/23/2026

Fifty’s song shows Five the patterns that make them similar.

The Forest of Tens
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#13 - The Forest of Tens

Season 8 - Episode 27 - Aired 2/24/2026

Thirty-Six and Forty-Five are exploring the Forest of Tens on a quest!

All the Numbers I Can Be
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#14 - All the Numbers I Can Be

Season 8 - Episode 28 - Aired 2/25/2026

One Hundred shows One all the different numbers she can split into.

Rings of Unity
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#15 - Rings of Unity

Season 8 - Episode 29 - Aired 2/26/2026

The pull of a strange planet splits the Numberblocks into hundreds, tens and units!

Flights of Fancy
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4.00
2 votes

#16 - Flights of Fancy

Season 4 - Episode 13 - Aired 7/10/2019

Rocket Ten and friends blast off into space for a rhyming adventure to visit planets 11 to 20.

Ride the Rays
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4.50
2 votes

#17 - Ride the Rays

Season 3 - Episode 24 - Aired 1/24/2019

A fantastic treat awaits the Numberblocks if they can figure out how to ride the rays to the top of Ray Canyon.

Puzzle Square
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5.00
3 votes

#18 - Puzzle Square

Season 5 - Episode 23 - Aired 6/16/2021

Puzzle-master Thirty-Six challenges the others to find a way into Puzzle Square by opening locks with Numberblocks. Learn about solving problems with the Numberblocks.

Terrible Twosday
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5.00
2 votes

#19 - Terrible Twosday

Season 4 - Episode 19 - Aired 7/18/2019

They came from outer space to divide the Numberblocks into Twos. Who can stop the invasion of division with the Numberblocks.

Figure It Out
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5.25
4 votes

#20 - Figure It Out

Season 5 - Episode 20 - Aired 6/11/2021

Twenty-One reveals her six-step plan for figuring out Numberblocks - and takes some friends along for the ride. Learn different ways to explore the properties of a number with the Numberblocks.

Ten's Top Ten
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5.25
4 votes

#21 - Ten's Top Ten

Season 5 - Episode 3 - Aired 3/10/2021

Ten presents a rundown of the top hit songs in Numberland. Learn number bonds to six, seven, eight, nine and ten with the Numberblocks

The Big One
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5.33
3 votes

#22 - The Big One

Season 4 - Episode 27 - Aired 8/13/2019

One has found a way to keep adding Ones all the way to Ninety-nine. But what on earth comes next?

Fifteen's Minute of Fame
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5.83
6 votes

#23 - Fifteen's Minute of Fame

Season 4 - Episode 1 - Aired 6/10/2019

The Numberblocks put on a talent show full of terrific number tricks, but it doesn't quite go according to plan

Subtraction Somersaults
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6.00
1 votes

#24 - Subtraction Somersaults

Season 8 - Episode 14 - Aired 9/3/2025

Thirteen is learning to jump and take away some blocks. What’s left?

The Best House Band in Numberland
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6.00
1 votes

#25 - The Best House Band in Numberland

Season 8 - Episode 10 - Aired 8/28/2025

Numberblocks Six to Ten sing about parts and wholes, and the numbers they have inside.