The calculator puzzle book /

Birtwistle, Claude.

The calculator puzzle book / [electronic resource] by Claude Birtwistle. - New York : Bell Pub. Co., c1978. - 125 p. : ill. ; 24 cm.

Includes index.

0517266822 9780517266823

78025783


Calculators--Problems, exercises, etc.
Mathematical recreations.

QA75 / .B55

793.7/4