Mathemagic: Magic, Puzzles, Games with Numbers, by Royal V Heath Jimmy Strange Each time they manage to

Each time they manage to separate themselves into their respective colours

Various designs available

and the effect can be presented both in situations of extreme close-up as well as in stage

a WORD and an IMAGE

Another lame reworking of a classic trick

Mathemagic: Magic, Puzzles, Games with Numbers, by Royal V Heath Jimmy Strange Each time they manage toBy Royal V. Heath. More than 60 new puzzles and stunts based on the properties of numbers. Easy techniques for multiplying large numbers mentally, identifying unknown numbers, determining the date of any day in any year, interest rates worked in one's head, such entertainments as the Lost Digit, and Psychic Bridge. Over 30 pages of magic squares, triangles, cubes, much more. Inexhaustible source of stimulating mathematical recreation. 76