Journal Entry: How high can you count with your ten fingers?

With ten fingers I can count as long as I can or need. If I need to count up to 100 I just use ( count)  ten times my fingers.

Hand Shake Problem 2

1- Read and understand the problem: *There are 20 people in the room (including me) * Each person must handshake one time, only one. * we need to find out how many handshakes will occur. 2- Make a solution ( how are we going to find the answer) * My group made a table. 3- Execute the plan.

Students/Handshakes

20/190

19/171

18/153

17/136

16/120

15/105

14/91

13/78

12/66

11/55

10/45

9/36

8/28

7/21

6/15

5/10

4/6

3/3

2/1

1/0

*If n amount of students: the result will be n(n-1) \ 2 

Ex; n=4 

4(4-1) | 2 

3*4=12

12|2 = 6