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Math Brain Teasers

Test your own mathematical ability
Quiz by Altair
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Last updated: April 28, 2014
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First submittedApril 28, 2014
Times taken195
Average score44.4%
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Hint
Answer
25*11
275
111111111*111111111
12345678987654321
56*65
3640
{[(54+51)(2054)][(250/50)(60.4)]}{0}
0
14+(-14)-(14)+14
0
Hint
Answer
How can you add eight 8's to get the number 1,000? (only use addition)
8+8+8+88+888
A man told his friend, “Four years from now I’ll be twice as old as I was fourteen years ago.”
32
What is the missing number in this series: 9 3 15 7 12 ? 13 5 17 11
8
Mary has coins and so does Larry. After they compare the number of their coins, Mary said, "If you give me 1 coin the number of coins I have is the same as yours". But Larry answered, "No, but if you give me 1 coin, then i have twice as many coins as you". How much does Mary have? Larry?
Mary has 5 and Larry has 7
1 Comments
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Arp2600
+1
Level 86
May 1, 2014
Funny. But there are two problems : If you find one of the zeros, you automatically get the other. The fifth question doesn't work because symbols as + are ignored.
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