Trond Posted December 24, 2005 Posted December 24, 2005 Just using addition, subtraction, multiplication, and division, can you form all the numbers from 1 to 10 using exactly four 4's? You may use parentheses and you can also combine fours to make other numbers (like 44 or 444).
cosine Posted December 24, 2005 Posted December 24, 2005 If you go to the General Mathematics forum we did this challenge all the way to I believe 119 or 120
ecoli Posted December 24, 2005 Posted December 24, 2005 http://www.scienceforums.net/forums/showthread.php?t=15117&highlight=fours here is is
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