Welcome back problem solvers.

I am so impressed with your thinking! I have to admit I had a bit of a problem with last weeks...my first answer was 25 days then I worked it out again and got 20.

Last weeks answer: 5 totally clear days and 15 half and half.

In the 15 half and half days:
7 of the clear mornings were followed by rain, 8 of the clear afternoons were preceeded by rain. 20 days of the vacation.

This weeks problem

This stairway is made of cubes. How many cubes would be needed to make the steps 9 steps high?

Is there a pattern that can help you solve the problem?

What a great start to our blog!

13 comments on our first blog - well done.

There were 2 correct answers to last weeks problem

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.

This weeks problem:

The weather during Sam Smith's holiday was strange. It rained on 15 different days, but it never rained for a whole day.
Rainy mornings were followed by clear afternoons.
Rainy afternoons were preceeded by clear mornings.
There were 12 clear mornings and 13 clear afternoons in all.
How long was the holiday?

How will you go about solving this problem?
Will you draw pictures?
Will you make a chart?
Share your strategies as well as your answers.

Welcome to our Problem Solving Blog.

Each week I will post a new problem for you to solve on your own or with your family. Post a comment and tell us your answer and how you went about solving the problem.



This weeks problem:

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?

Have Fun!