Train your brain : a year’s worth of puzzles /
Gratzer, George A.
Train your brain : a year’s worth of puzzles / George Gratzer ; translated by Tom Artin - Boca Raton, FL : CRC Press, c2011 - xviii, 235 p. : ill. ; 23 cm.
Translated from the German
9781568817101 156881710X
Word games
Word problems (Mathematics)
Train your brain : a year’s worth of puzzles / George Gratzer ; translated by Tom Artin - Boca Raton, FL : CRC Press, c2011 - xviii, 235 p. : ill. ; 23 cm.
Translated from the German
9781568817101 156881710X
Word games
Word problems (Mathematics)