**정보**

**ISBN : 0471575631****출판사 : John Wiley Sons Inc****출판일 : 19920901****저자 : Julius, Edward H.**

**요약**

● ● 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…

Rapid Math Tricks Tips: 30 Days to Number Power (Paperback)