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Number Enigmas: 100 Challenging Exercises Designed for Maximum Fun and Cognitive Conditioning
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Paperback
from Thunder Bay Pr (May 1, 2003)
9781592230181 | details & prices | 128 pages | 8.25 × 10.75 × 0.50 in. | 1.30 lbs | List price $9.98
About: Containing over 100 exercises, Number Enigmas challenges even the cleverest number crunchers.
About: Containing over 100 exercises, Number Enigmas challenges even the cleverest number crunchers.