In the ten problems listed below, your task is to make the number shown in bold, using once and once only, all six numbers, which accompany it.
You may use any mathematical operations you wish, to arrive at the given number.

            784 1, 1, 5, 6, 8, 100
            327 6, 7, 8, 9, 9, 50
            931 3, 4, 7, 8, 10, 75
            425 2, 4, 6, 8, 9, 50
            489 2, 3, 4, 6, 10, 75
            845 4, 7, 8, 9, 9, 25
            763 2, 3, 4, 5, 6, 25
            599 2, 3, 4, 6, 7, 75
            291 4, 8, 9, 9, 10, 100
            143 1, 4, 5, 6, 9, 10

Is more than one solution possible for a problem? Please include them if you find some.

I tried doing it with just brackets, +, -, x, and /

784 = (100+1)x8-(5-1)x6
327 = (50-6)x8-9-9-7
931 = 75x(8+4)+10+7x3
425 = (50-6/2)x9+8/4
489 = (75+4)x6+10+3+2
845 = 25x9x4-9x7+8
763 = ((25-2)x5-6)x(3+4)
599 = 75x(6+2)-(3+4)/7
291 = (100/4)x8+9x9+10
143 = 10x(9+5)+6+1-4

Nice problem Josie, lots of different possible solutions

Posted by Lisa on 2006-11-03 06:45:57