Thursday, July 2, 2009

Grade 5 problems

Topic:-Problem Solving

There is the 6 step method for problem solving for conflicts between individuals and groups ....

1) define problem
2) Generate possible solutions
3) Evaluate solutions
4) Make the decision
5) Determine how to implement the decision
6) Assess the success of the solution

This method is also called as problem solving techniques
This math help have 2 examples problems

Q1)
How many addition signs should be put between digits of the number 987654321 and where should we put them to get a total of 99?

Answer: 1) 9+8+7+65+4+3+2+1 = 99 -> 7 addition signs.

2) 9+8+7+6+5+43+21 = 99 -> 6 addition signs.

Q2)According to experts the first 4 moves in a chess game can be played in 197299 totally different ways. If it takes 30 seconds to make one move, how long would it take one player to try every possible set of 4 moves?

Answer: 30 seconds * 4 * 197299 = 23675880 seconds.


For more help on this ,Please reply me.

No comments:

Post a Comment