Insert +, , /, *, (), ^, !, or any operator you can think of...
Quiz of the Week
Do there exist operations that can be performed to make this equation true?
Note: Any operations can be used, so get creative!
Saturday, December 23, 2017
Numbers : can you make 1 1 1 1 = 5? (Fr Brilliant.org)
Sunday, December 17, 2017
Thursday, December 14, 2017
P5/P6 Area of triangle/ decagon (brilliet)
Sent from my iPhone
Begin forwarded message:
From: "Brilliant" <notifications@brilliant.org>
Date: 14 December 2017 at 2:40:06 PM SGT
To: <changchengliang@gmail.com>
Subject: Chang, orange you glad we send you math puzzles?
In the regular decagon above, find the percentage of area that is shaded orange.
Problems of the Week
December 11  December 17
Basic Intermediate Advanced
In the regular decagon above, find the percentage of area that is shaded orange.
Hint: You can solve this in your head with one quick trick!
Solve
Brilliant, 15 Butte Pl, San Francisco CA 94103
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Wednesday, December 13, 2017
Saturday, December 9, 2017
Friday, December 8, 2017
Thursday, December 7, 2017
Tuesday, December 5, 2017
Sunday, December 3, 2017
Thursday, November 30, 2017
there's a quick trick to this geometry puzzle...
What percentage of the square's area is colored blue?

Wednesday, November 29, 2017
Monday, November 27, 2017
Monday, November 20, 2017
Logical thinking: “What will balance this scale?”
At the end of this Exploration, you'll have a thorough toolbox of algebraic techniques that feel natural to use and empower you to master complex problems and puzzles!
Quiz of the Week
How many green squares should be placed on the right side of the bottom scale in order to make it balance when released?
Solve
Solve beautiful puzzles with algebraic techniques
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Brilliant, 15 Butte Pl, San Francisco CA 94103
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Friday, November 17, 2017
Tuesday, November 14, 2017
Mass, algebra , Logical thinking
Sent from my iPhone
Begin forwarded message:
From: "Brilliant" <notifications@brilliant.org>
Date: 13 November 2017 at 1:30:09 PM SGT
To: <changchengliang@gmail.com>
Subject: Chang, can you solve this scale puzzle?
How much does a single red square weigh?
Quiz of the Week
How much does a single red square weigh?
Solve
Solve beautiful puzzles with algebraic techniques
Get unlimited access to Algebra Through Puzzles and much more by becoming a Premium member.
Learn more
Brilliant, 15 Butte Pl, San Francisco CA 94103
Unsubscribe from receiving Brilliant problems of the week 23 times per week (like this one).
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