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January 30, 2015

January 30, 2015

Posted by **Anonymous** on Tuesday, June 12, 2012 at 5:00am.

- Algebra III -
**MathMate**, Tuesday, June 12, 2012 at 6:39amLast digit:0 or 9 (2 choices)

second to fourth digits, 4 choices each.

Total number of four digit odd integers

=4*4*4*2

=128

(these include 9999 and 0009, etc.)

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