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Daily 30 Seconds 



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Can you solve the mathematical questions in 30 seconds?

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Easy – Apr 19

−1
SQUARE
−8
×5
+3
÷8
−3
HALVE
+15
?
 

Puzzle Copyright © Kevin Stone



Medium – Apr 19

+1
÷2
−7
×5/9
−4
DOUBLE
SQUARE
×7/9
HALVE
?
 

Puzzle Copyright © Kevin Stone



Hard – Apr 19

+16
HALVE
+3
×41/2
×75%
−9
÷14
SQUARE
×2
?
 

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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