I just found out about a little math game called Four Fours. Basically what you try to do is try to represent integers using only the number 4 and a few common mathematical operators, for example:
0 = 4 - 4 + 4 - 4
1 = ( 4 + 4 ) / ( 4 + 4 )
2 = ( 4 * 4 ) / ( 4 + 4 )
…
3 responses so far ↓
1 donnie // Dec 11, 2006 at 9:21 am
3 = ( 4 * 4 - 4 ) / 4 -or- (4 + 4 + 4) / 4
4 = 4 * (4 - 4) + 4
5 = ( 4 * 4 + 4 ) / 4
6 = 4 + (4 + 4) / 4
7 = 4 + 4 - (4 / 4)
does this count: 7 = ( 44 / 4 ) - 4 ?
8 = 4 * ( 4 + 4 / 4 )
man, that’s pretty tough! If you can use only +,-,*, and / then the biggest number you can make is 4*4*4*4 = 256 and I don’t see how you could make any number between 4*4*(4+4)=96 and 256…
2 Marshall // Dec 11, 2006 at 9:53 am
Yes, 44 is valid, as is 4.4 if you want or .44. You can also use the sqrt(), !, and ^ operators!
3 Gabrielle // May 30, 2007 at 2:20 pm
could you go threw 100 please
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