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Mental Cube Root (Posted on 2004-03-10) Difficulty: 2 of 5
If the cube root of 1331 is 11 and the cube root of 1728 is 12, what is the cube root of 1442897?

(Do this one in your head - no writing or calculators allowed!)

See The Solution Submitted by Gamer    
Rating: 2.6667 (9 votes)

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Solution 2 EZ | Comment 2 of 6 |
1331000<1442897<1728000
ans:113 since 3^3 terminates by a digit 7

ady
  Posted by Ady TZIDON on 2004-03-10 14:59:04
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