Author: BIRTWISTLE, CLAUDE.
Title: The Calculator Puzzle Book.
Description: Kingswood: Elliot Right Way Books. 1978. "Over 90 superb puzzles, all with full answers and explanations. Use your mind to grasp the essentials of each problem and your calculator to perform the arithmetic". Pp 125. Toned pages. P/b. Illustrated cover. G+.

Keywords: Birtwistle Calculator Puzzle Arithmetic A10313 Miscellaneous


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