Using proven techniques, this volume shows how to add, subtract, multiply and divide faster than is possible with a calculator or pencil and paper, and helps re
Sir Tzyphyr is no ordinary Wizard—he knows mathemagic, the spell of numbers. It gives him a power greater than ordinary magic ever could. With him, the twins
Even if you aren’t David Copperfield, you can use these 57 hands-on tricks to enchant your students. Covering everything from basic math through basic algebra