Rapid Math Tricks and Tips – 30 Days to Number Power

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TRAMA
Master common math problems without a calculator! Award-winning math teacher Ed Julius covers more than 60 powerful math tips and techniques in his entertaining 30-day program. For example, multiply any two-digit number by 11 simply by splitting apart the two digits, adding them, and placing the sum in the middle (45 x 11 = 495 because 4 + 5 = 9).

ALTRE INFORMAZIONI
  • Condizione: Nuovo
  • ISBN: 9780471575634
  • Dimensioni: 254 x 13 x 178 mm Ø 452 gr
  • Formato: Brossura
  • Pagine Arabe: 240