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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 – Jul 02

×6
−18
×3
+17
÷7
+13
÷2
SQUARE
+19
?
 

Puzzle Copyright © Kevin Stone



Medium – Jul 02

−1
×1/2
−3
DOUBLE
+7
×7/9
−9
SQUARE
−16
?
 

Puzzle Copyright © Kevin Stone



Hard – Jul 02

+1
÷4
+2
×31/2
+8
÷10
+3
×42/5
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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