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Daily 30 Seconds 



Random: Easy  Medium  Hard  

Can you solve the mathematical questions in 30 seconds?

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Easy – Apr 24

−8
SQUARE
−17
×5
+1
HALVE
−10
÷2
−6
?
 

Puzzle Copyright © Kevin Stone



Medium – Apr 24

+2
÷3
SQUARE
HALVE
+5
×4/7
−2
×1/2
−12
?
 

Puzzle Copyright © Kevin Stone



Hard – Apr 24

×2
−14
×4/11
−18
×30%
SQUARE
−4
×4/7
HALVE
?
 

Puzzle Copyright © Kevin Stone



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Notes 



Click 'start' to see the starting number, and then follow the instructions, one at a time, until you reach the end. Not everyone can solve every 30 Seconds puzzle within 30 seconds.

I have deliberately chosen not include the answers – you can use a calculator to see the value at each stage of the calculation.

Note: take a look at the information about the difficulty levels.

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