Math Duel - Who can calculate faster?: 50 exciting rounds of brain teasers for 2 players | Featuring 100 maths puzzles in 10 variations across 5 difficulty levels

Math Duel - Who can calculate faster?: 50 exciting rounds of brain teasers for 2 players | Featuring 100 maths puzzles in 10 variations across 5 difficulty levels

Independently published

Pages: 135, Paperback, Independently published

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