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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 - Mar 19

+7
×4
−10
÷2
−17
HALVE
+8
×5
−14
?
 

Puzzle Copyright © Kevin Stone



Medium - Mar 19

−13
×3
−5
×5/7
×2
−10
×2/3
HALVE
−12
?
 

Puzzle Copyright © Kevin Stone



Hard - Mar 19

+1
÷5
−2
×7/11
×6
×2/3
×25%
HALVE
CUBE
?
 

Puzzle Copyright © Kevin Stone



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Notes 



Click 'start' to see the starting number, and then follow the instructions until you get to 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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