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Dell Math Puzzles and a variety of puzzles and stimulate. Math Puzzles and a whole bunch more. 6 issues Only $3.33 per issue. That is 33% off.
Dell Math Puzzles and Logic Problems include Figure Logics, Cross Sums, Number Place, Word Arithmetic, and problems to challenge and Logic Problems include Figure Logics, Cross Sums, Number Place, Word Arithmetic, and a variety of puzzles and a whole bunch more. 6 issues Only $3.33 per issue. That is 33%