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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 02

−1
×4
+7
÷3
−6
×5
−13
HALVE
−10
?
 

Puzzle Copyright © Kevin Stone



Medium – Apr 02

SQUARE
−11
DOUBLE
+6
×3/4
÷6
+4
×2/9
−1
?
 

Puzzle Copyright © Kevin Stone



Hard – Apr 02

HALVE
−4
×25%
SQUARE
−1
×3/8
+3
÷4
+19
?
 

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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