5000 Evil Numbrex Puzzles to Improve Your IQ

ISBN-13: 9781494350338 / Angielski / Miękka / 2013 / 262 str.

Kalman Toth M. a. M. Phil

Opis

Success starts with a sharper mind Solving NUMBREX puzzles guarantees to put your brain in top operating condition. NUMBREX puzzles challenge your mind two ways. First translate the result of an addition, subtraction, multiplication or division to decimal from binary, hexadecimal or roman numeral number formats. Second calculate the missing second operand in the arithmetic operation. NUMBREX & SOLUTION 2952.53 - ____=10000 2953.7 * ____=LXXXIV 2954.12