The Great 1999 Challenge

Can you find solutions different from the ones below?

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Send your name, age, and the name of your school ( and it's Web Site address if it has one). If you are the first with that solution then we will enter your name on the chart along with a link to your school.

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Our current record using sub-factorials is 139 as of 25th March 99.
The record without sub-factorials is 136 (It was 131 last year)

Read the history of this challenge.

1-25

26-50

51-75

76-100

101-125

126-150

151-175

0 =	1 +--	Steven Balfour (S3)	19 x ( 9 - 9 ) By special request of Jenna O'Byrne from Singapore
1 =	19 - 9 - 9	Niki Singers (S3)
2 =	(1 x 9 + 9) / 9	Stuart Geddes (S3)
3 =	1 x 9 -9 -9	Mark Husband (S3)	1 x9 x 9 / 9 Eric Schechter of Vanderbilt University
4 =	1 + 9 - 9 + 9	Stuart Anderson (S3)
5 =	1+ 9 / 9 +9	Niki Singers (S3)
6 =	1 x 9 / 9 +9	Rebekah Davidson (S3)
7 =	19 - 9 -9	Sarah Robertson (S3)
8 =	-1 + 9 - 9 + 9	Calum Simpson (S3)
9 =	-1 x 9 + 9 + 9	Ross Barclay (S3)
10 =	1 + 9 -9 +9	Niki Singers (S3)
11 =	1 + 9 + 9 / 9	Lorna Campbell (S3)
12 =	1 x 9 /9 + 9	Stuart Geddes (S3)
13 =	19 +9 - 9	Emma Stanton (S3)
14 =	-1 + 9 +9 +9	Niki Singers (S3)
15 =	1 x 9 +9 +9	Mark Husband (S3)
16 =	1 + 9 +9 +9	Andrew Artingstall (S3)
17 =	-1 + 9 x9 - 9	Niki Singers (S3)
18 =	1⁹ x 9 + 9	Emma Stanton (S3)
19 =	19 + 9 - 9	Craig Davidson (S3)
20 =	19 + 9 / 9	Niki Singers (S3)
21 =	( 1 + 9 ) x9 - 9	Andrew Artingstall (S3)
22 =	1 + 9 +9 + 9	Cara Reid (S3)
23 =	-1 + 9 x9 -9	Chris Hardwick (S2)
24 =	1 x 9 x9 -9	Rebekah Davidson (S3)
25 =	19 + 9 -9	Rebekah Davidson (S3)

Return

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Solutions 26 - 50