## Saturday, April 30, 2011

### Problem of the Week for May 1, 2011

No winners last week.

Here's the problem for this week:

First, write down the numbers  123456789  in that order.   Next, insert one plus sign  +  and two minus signs  - , -  so that the resulting numbers total exactly 100.

Good luck!

### Master the Graphing Calculator

The most important math tool for success in high school is the TI 83 or 84. The better you are at using these, the faster you solve your problems and the less mistakes you will make. You have got to be an expert at using these and understanding what all those buttons can do for you.

Mathbits is a great site to get answers to all your graphing calculator issues.

Check out some great videos of past math regents problems being solved with all the steps. It also shows how to correctly set your graphing calculator, which will save you time. As the regents gets closer (see side link for your regents schedule), this is a great way to do some extra studying and review.

For Algebra1 go here

For Algebra2 go here

For Geometry go here

Also remember that teachers are staying after school to offer help!

### Ken You Solve it?

KenKen is a great Japanese math game similar to Sudoku that is supposed to train your brain to do simple math quickly.

The rules are simple:

As in sudoku, the goal of each puzzle is to fill a grid with digits - 1 through 4 for a 4×4 grid, 1 through 5 for a 5×5, etc. - so that no digit appears more than once in any row or column. Grids range in size from 3×3 to 9×9. Additionally, KenKen grids are divided into heavily outlined groups of cells - often called “cages” - and the numbers in the cells of each cage must produce a certain “target” number when combined using a specified mathematical operation (either addition, subtraction, multiplication or division). For example, a three-cell cage specifying addition and a target number of 6 in a 4×4 puzzle might be satisfied with the digits 1, 2, and 3. Digits may be repeated within a cage, as long as they are not in the same row or column. No operation is relevant for a single-cell cage: placing the "target" in the cell is the only possibility. The target number and operation appear in the upper left-hand corner of the cage.

Try it here, and keep coming back for new puzzles every day.

## Tuesday, April 26, 2011

### Problem of the Week for April 25th, 2011

Congrats to Sanjeev, Vince and Buck Jones for the right answers to last weeks problem. Nice work and keep them coming.

This weeks problem: There are 7 more girls than boys in Mr. Curtins math class. If there are 29 students in class, how many are boys?
a. 11
b. 18
c. 20
d. 22

### Regents Review on TV

IN case you have some time on your hands (and I know you do) watch WCNY on Channel 24 at 4:30 pm and watch the following:

Tuesday, May 3    Integrated Algebra
Wednesday, May 4   Geometry
Thursday, May 5  Algebra 2/Trigonometry

You can view previous episodes here.

## Saturday, April 9, 2011

### Problem of the Week(POW) for April 11, 2011

Each week an interesting math problem will be posted here. Try it and send in the correct answer with your FULL NAME and Grade to mathatitc@gmail.com.

One  lucky winner will be picked each week and the winners name will be announced on ITCs daily Announcements. If you miss the announcement you will be notified by a teacher. A small prize for the winner. One entry per week per student please!
(ITC students only!)

Good luck and heres the first problem....

Tickets for a show cost \$3 or \$5. If 50  tickets were sold for a total of \$230 , how many tickets were sold for \$3?

a. 10
b. 20
c. 25
d. 30
e. 40

(picture: POW: Batman)

### Free SAT Prep

Most SAT sites online make you pay to  practice or they don't have full test prep help.

(photo:skill-guru.com)