Maths games and activities /
Hollands, Roy.
Maths games and activities / Roy Hollands. - Hertfordshire : Hart-Davis Educational, 1979. - 130 p.
Puzzles
Mathematical recreations
Problem solving
Maths games and activities / Roy Hollands. - Hertfordshire : Hart-Davis Educational, 1979. - 130 p.
Puzzles
Mathematical recreations
Problem solving