This topic is lockedwonderful!!7 x (7+7) + cubed root of (7+1) = 100
7 X 14 + cubed root of 8
98 + 2 = 100
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52 replies to this topic
#41
Bree
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Posted 22 May 2008 - 12:22 AM
#42
Kagekiba
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Posted 01 July 2008 - 06:14 PM
(7*(7+7)) = 98
+ root7 = 100.64...
- 1 = 99.64... = 100(3sf)
+ root7 = 100.64...
- 1 = 99.64... = 100(3sf)
#43
SillouhetteMind
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Posted 01 July 2008 - 06:20 PM
That doesn't work because you need exactly 100, not approximations. Good try though, I can't get one yet. lol(7*(7+7)) = 98
+ root7 = 100.64...
- 1 = 99.64... = 100(3sf)
#44
cmabb21
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Posted 09 July 2008 - 09:11 PM
Hi all,
I thought of a unique solution...
By inverting 2 of the 4 - 7's
1 L7 L7
Ha Ha ! !
lol.. you're a smart cookie
#45
despistado
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Posted 30 August 2008 - 01:52 AM
100 - Back to the Number Puzzles
Using four sevens (7) and a one (1) create the number 100. Except (Edit: In addition to) the five numerals you can use the usual mathematical operations +, -, x, :, root and brackets ().Spoiler for Solution
I found a third solution:
(77/.77)^1=100
#46
Buddyru
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Posted 06 September 2008 - 05:28 AM
Hi all,
I thought of a unique solution...
By inverting 2 of the 4 - 7's
1 L7 L7
Ha Ha ! !
that is very funny...
and the answer:
Spoiler for Solution
#47
seward132
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Posted 17 October 2008 - 08:15 PM
Piece of cake
7 squared + 7 squared +1 +7/7=100
49+49+1+1=100
7 squared + 7 squared +1 +7/7=100
49+49+1+1=100
#48
artheist
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Posted 23 October 2008 - 09:27 AM
My answer is: (7?+1)((7+7)/7) = 100
(49+1)(14/2) = 100
50x2 = 100
I thought inverting the 7's was sheer genius
(49+1)(14/2) = 100
50x2 = 100
I thought inverting the 7's was sheer genius
#50
shindofusi
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Posted 07 January 2009 - 03:13 AM
My answer is: (7?+1)((7+7)/7) = 100
(49+1)(14/2) = 100
50x2 = 100
I thought inverting the 7's was sheer genius
U cant use that opperation
called concentation???
but u cant combine numbers like that
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