Calculator Riddles Author:David A. Adler, Cynthia Fisher (illustrator) A calculator is a whiz at doing math problems. Most calculators can also be used to write favorite words. That's because 8 of the digits when looked at upside down are letters. With only 8 letters and eight spaces on most calculators, there are a limited number of words that can be written. But still, you can have lots of fun. You can find a... more »nswers to calculator riddles.
First, read the riddles in this book. Then, with your calculaotr, solve the math problems that follow each riddle. Turn your calculator upside down. The digits will spell out words. Answers are in the back if you have trouble figuring things out. Filled with whimsical illustrations and fun riddles.
Note, however, that these riddles don't work well on a cell phone for two reasons: Cell phones don't normally use 7-segment digital displays, which is necessary for some of the letters to appear right. Secondly, it is difficult to turn the image on a cell phone upside-down. This book is designed for stand-alone calculators with 7-segment digital displays, the kind that were ubiquitous a few years ago.« less