Showing posts with label how many ways. Show all posts
Showing posts with label how many ways. Show all posts

Wednesday, April 2, 2014

This Week's Work : Week 45 - for Inquisitive Young Mathletes

See if you can use "sticks and stones" to solve the following questions (it requires a little twist).

Tossing 3 dice, what is the probability that the sum is 10 ? 

Tossing 4 dice, what is the probability that the sum is 10 ?

Tossing 4 dice, what is the probability that the sum is 18 ? 

If you want to try harder problems, check out this year's AIME II, 1, 3 and 4. (related to what we've learned recently)

This week's new links, working together, direct and inverse proportion, rate, time distance. 

Take care and happy problem solving. 
Cheers, Mrs. Lin 

Tuesday, March 25, 2014

This Week's Work : Week 44 - for Inquisitive Young Mathletes

From Mathcounts Mini : More Constructive Counting

Also try the warm-up, retry the problems in the video on your own and spend some time
pondering on those follow-up, harder problems.

#7 and 9 are more challenging.

Review 2014 harder school round problems, especially the "Harvey" method.

Try the first 8 2012 AMC-10 B questions again and see if you have the speed.

Have fun problem solving !! Mrs. Lin