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santa cruz, ca.
how many numbers can be created using four 4's in combination with any mathematical symbol beginning with zero example: 44-44=0 44/44=1 (4x4)/(4+4)=2 (4x4-4)/4=3 remember that you must use four 4's next up the number 4
127.0.0.1
4+(4-4)/4 = 4 4 + (4/4)^4 = 5 (4 + 4)/4 + 4 = 6
Linkenheim
Originally posted by lemondrop how many numbers can be created using four 4's in combination with any mathematical symbol beginning with zero example: 44-44=0 44/44=1 (4x4)/(4+4)=2 (4x4-4)/4=3 remember that you must use four 4's next up the number 4
44/4 - 4 = 7 4-4+4+4 = 8 4+4+4/4 = 9
4+(4-4)/4=1 not 4 your equation for the number 5 is also incorrect
Originally posted by lemondrop 4+(4-4)/4=1 not 4 your equation for the number 5 is also incorrect
remember to use parenthesis or else your equation for number 9 is incorrect
must use 4 fours
square root, factorials, logarithms etc. may be used
Originally posted by lemondrop remember to use parenthesis or else your equation for number 9 is incorrect
the number 13 is difficult
my mistake forkedknight can you do number 13?
sqrt(4^4)*sqrt(4)+sqrt(4)=10 4+4+4-sqrt(4)=10 4*4-4-sqrt(4)=10 4*(4-4/4)=12 4*4-4/4=15 sqrt(4)*sqrt(4)*sqrt(4)*sqrt(4)=16
now 13 can anyone come up with a formula for 13?
to avoid any ambiguities the use of parenthesis may be required
