The Guess Card

This guess card is a puzzle made from 2-base number system. To determine how much card is needed, we must take the range of the age we will guess. For example, we will guess the age of the boy whose range 1-15 years old, so here we need 4 cards. Here we use the relation between 10-base number and 2-base number. With the four first 2-base numbers we can make 24-1 combination. So that cards contain till 15 numbers, and so on. Let’s look like the picture:

If the child who his age is guess say that his age is in the card A, C and D then the child’s age definitely 13. Where is the number from???
The 13 number is the sum of the smallest number in the A, C and D cards. They are 1+4+8 = 13.
Try the other number… :)
Next time I try to make some application to generate this card, so you can play this game. See next…

The Reverse Numbers

Let’s try the following steps:
* Write the number with 2 digits.
* Reverse that number.
* Find the difference between that 2 numbers from step 1 and step 2
* Divide the answer from step 3 by the positive difference between 2 digits number from step 1.
* The result absolutely always 9. Why??
Example:

step 1	97	81	12
step 2	79	18	21
step 3	|97 – 79| = 18	|81 – 18| = 63	|12 – 21| = 9
step 4	18 : |9-7| = 9	63 : |8-1| = 9	9 : |1-2| = 9

The S-methic(Smart Arithmetic)

Here I have an application for the child who learning arithmetic. I made this application using Java. Actually this is my assignment in Java class. Not too bad for the beginner like me. I try to make some option as like addition, substraction, multiplication and division. Also there are the level choice, beginner, intermediate and advance. I mean here this game is for the child who learning arithmetic.

click here for download

About Number

the Interest thing about 10-base number
1 X 9 + 2 = 11
12 X 9 + 3 = 111
123 X 9 + 4 = 1111
1234 X 9 + 5 = 11111
12345 X 9 + 6 = 111111
123456 X 9 + 7 = 1111111
1234567 X 9 + 8 = 11111111
12345678 X 9 + 9 = 111111111

9 X 9 + 7 = 88
98 X 9 + 6 = 888
987 X 9 + 5 = 8888
9876 X 9 + 4 = 88888
98765 X 9 + 3 = 888888
987654 X 9 + 2 = 8888888
9876543 X 9 + 1 = 88888888
98765432 X 9 + 0 = 888888888

999999 X 2 = 11
999999 X 3 = 111
999999 X 4 = 1111
999999 X 5 = 11111
999999 X 6 = 111111
999999 X 7 = 1111111
999999 X 8 = 11111111
999999 X 9 = 111111111

what is the conclusion from these numbers???

Welcome

Welcome back in new blog. actually I'm doing something for my new legal site but cause of many trouble so that's pending. before I use this blog I've wrote in wordpress. when it proceed I found any difficulty so I move the site here.
ok welcome still in GAMEMATICS new version.

I hope your opinion and support. thx