How it works
You will be given a large number which you are not expected to know, and you need to estimate its value. You will get more points the closer you are to the true value. There are 3 points available per question.
Calculators are permitted. Estimating smaller quantities and then doing a lot of multiplication is a great strategy! However, you may not search up anything. Some questions will provide you with additional facts which you may find useful.
Big Numbers!
Some of these questions require you to answer very big numbers! In case you're unfamiliar with working with big numbers:
- 1 trillion = 1,000,000,000,000 = 1,000 billion = 1 million million
- 1 billion = 1,000,000,000 = 1,000 million
- 1 million = 1,000,000
Be careful, some of these questions will ask you to answer in millions.
The Quiz
Question 1
What is the current world population? Give your answer in millions.
(Last Updated: August 2024)
million people
Question 2
What is the equatorial circumference of the moon in kilometers?
Useful Facts: 1.6 km = 1 mile, Circumference = 2𝜋 × Diameter.
km
Question 3
How many tennis balls are used during Wimbledon each year?
tennis balls
Question 4
How big is the world's largest IKEA (in square metres)?
Useful Facts: The average Tesco supermarket is approximately 4000 m²
m²
Question 5
How many words are there in Shakespeare's longest play, Hamlet?
words
Question 6
What is the average temperature on the surface of the Earth, in degrees Celcius?
Useful Facts: Degrees in Celcius = (Degrees in Fahrenheit - 32) * 5/9
°C
Question 7
How many atoms are there in the observable universe? Leave your answer in the form 10^x.
1 followed by zeroes
Question 8 [No Calculators]
What is the value of √2? You will get 1 point per decimal place, up to 3.
Calculators are not permitted for this question.
√2 =
Question 9
How many chickens are there in the world? Give your answer in millions.
million chickens
Question 10
How many YouTube videos are uploaded each day?
videos
The Results
All done? When you're ready, click the button below to validate your answers and see how many points you get!