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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 – Feb 01

−3
×7
+2
÷3
−1
÷2
+3
HALVE
+13
?
 

Puzzle Copyright © Kevin Stone


Medium – Feb 01

−6
÷7
−1
×9
+3
×1/2
÷4
SQUARE
HALVE
?
 

Puzzle Copyright © Kevin Stone


Hard – Feb 01

+1
÷9
+4
×3/4
×4
×41/4
÷3
+24
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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