4 0
Problem solving strategies for effecient and elegant solutions. Grades 6-12 : A resource for mathematics teacher / 6 6 Posamentier Alfred S. - Second Edition. - - xiii, 257p. - - - - - . - . - 0 . - . - 0 .
5
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9781412959704
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Problem solving strategies for effecient and elegant solutions. Grades 6-12 : A resource for mathematics teacher / 6 6 Posamentier Alfred S. - Second Edition. - - xiii, 257p. - - - - - . - . - 0 . - . - 0 .
5
5
9781412959704
2 = =
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
--------20--
--------20--
----2
/ 2
/ 2
/
/