Name_______________________________________________Date_________________________
Mathematics Problem Solving
Volume 5, Number 1, September 7, 1999
www.rhlschool.com

### Riddles

1. I am a sum. My addends are five different whole numbers. All my addends are greater than zero and less than eleven. All my addends are odd numbers. What am I?

2. I am a product. I have two factors. One of my factors is the last year of the twentieth century. My other factor is half of a pair. What am I? Clue: Read the definition of “century” in your dictionary.

3. I am a whole number represented by three digits. If you double me, I will still be represented by three digits. That’s true of other numbers as well, but I am larger than any of them. What am I?

4. I am a whole number represented by three digits. I am the smallest three digit whole number that does not contain any 0, 1, 2, or 3. What am I?

5. I am a four digit whole number. Each digit is an even number. All the digits are different. I am the greatest number that can be described that way. What am I?

rhlschool.comRHL School - Free Worksheets and MoreCopyright 1999 RHL

 Tweet G Delicious E-mail

Math Problem Solving Home

RHL School Home