To learn more about modulo click here.

Click here to check your answer

Code Games

Here are some code games to figure out. Some are hard!

1. 1 3 5 7 9 ___
2. 2 5 4 7 6 9 8 ___
3. 1 2 4 7 11 16 ___
4. 5 8 13 21 34 ___
5. III 3I I3II III32I ___

Math Puzzle

1. Pick a number
2. Add 10 to it
3. Multiply it by 2
4. Subtract 6
5. Divide by 2
6. Subtract your original number

Bigger to Smaller

How can you multiply a three digit number to get a smaller number? Here is how you do it.

1. Multiply the digits of a three digit number.
2. Example 234 2x3=6 6x4=24
3. Now you try with these numbers

Knight Game

Here is the Knight Game. The game board is a magic square so that all the rows, columns and diagonals all add up to the same number . In the example below, 260. In addition, the board is composed of 4 squares whose rows and columns each total 130. The object of the game is to move the knight around the board in a sequential order from 1 through 64 by just following the moves allowed of a knight chess piece. Steps 1 through 4 are done for you to help get you started.
 

 

To print a verision of the knight game click here.

The knight game is from The Magic Of Mathematics by Theoni Pappas. Copyright © 1994. Reprinted by permission of World Wide Publishing/Tetra, San Carlos, California

Mathematician Charles L. Dodgson, better known as Lewis Carroll, created the game of doublets. The English magazine Vanity Fair ran a number of contests in 1879 featuring Carroll's game. The game begins with two words of the same length. The object is to change the first word to the other word by forming other successive words of the same length. You may change only one letter at a time, trying to make the least number of transformations. Below is an example of changing "FOUR" to "FIVE".

Here are some others to try -

(1) Cover EYE with LID

(2) Prove PITY to be GOOD

(3) Get WOOD from TREE

(4) Change OAT to RYE

For the answers, click here.

The doublet game is from The Magic Of Mathematics by Theoni Pappas. Copyright © 1994. Reprinted by permission of World Wide Publishing/Tetra, San Carlos, California