Get out your timer and number two pencil to see if your arithmetic skills from grade school are still intact.
Add Yahoo as a preferred source to see more of our stories on Google. A viral mathematics problem has caused quite the debate as confusion over the correct way to solve it has many scratching their ...
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'Simple' math tests leaves people racking their brains - can you solve it in 30 seconds?
Get your timer out and see whether you can remember the golden rule from grade school math class.
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