STILL MORE NUMBERS: FUN AND FACT

The third in a popular series is prefaced by a chapter on prodigious performers or -- mental arithmetic acrobats, who are reassuringly ""lacking in intelligence in other directions."" Among many others, a boy of 8 who could multiply 2 numbers up to 6 digits in his head -- QUICKLY. Most of the book however, consists of some 100 problems, many of them in a pleasant anecdotal presentation, dealing with number peculiarities, letter and digit anagrams, verse epigrams, matches and coins, etc., etc., and the calibre of the problems would assume that you have stopped counting on your fingers.