Problem of the Week
Week of Aug 24th:
You have two older brothers named Doug and Jake. Doug and Jakes ages have a product of 195. The square of Doug's age is 169. Your age is three years less than Jakes. Find the ages of Jake, Doug and you.
Week of Aug 31st:
First find the value of x in the puzzle below.
21 15
14 7 8
9 x 2 6
Now subtract x from the year Leonardo Fibonacci was born. What is your result?
Week of Sept 7th:
There are an awful lot of really big numbers. One very big named number is
googol which is 1•10100 or a 1 with 100 0's behind it. It looks like
this:
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
The largest named number is googolplex which is 1•10googol, or a 1
with googol 0's behind it. I'd write it out for you, but my life isn't long
enough to type that many 0's :)
This puzzle is to see how big of a number you can come up with using only four 1's. You may use any mathematical operation you like, but the only numbers allowed are 1, 1, 1, and 1.
Good Luck!!
Week of Sept. 14th
When was Mrs. Hofer born?
Here are your clues:
Month: Solve 6 + (8 - 3 x 2)2
Day: Find the median of the data 18, 32, 24, 33, 28, 16.
Year: I was born the same year Elvis Presley died.
Week of Sept. 21st:
There is a number that is 8 times the sum of its digits. What is this number?
Week of Sept. 28th:
In the equation below, replace each question mark with one of the four mathematical signs: +,-, ×, or ÷. Each sign can be used only once. Fill in the blanks to solve the equation. (Hint: the first sign is +.)
(7 ? 5) ? 4 ? 7 ? 6 = 15
Week of October 5th:
Right in the Middle | |||||||||||||
The numbers in the middle column are related in some
way to the numbers in the left and right columns. How are they related?
|
Week of October 12th:
How Many Coins? |
|
A bag holds 50 coins that add up to $1.00. How many coins of
each denomination (value) are in the bag?
|
Week of Oct. 19th:
Checkers, the smartest dog in the world, was doodling in his
math diary and come up with three equations:
A-B=C
D/E=F
G+H=I
He was about to write a fourth equation using multiplication when an interesting
thought occurred to him. Instead of using a new set of numbers (J, K, L) for his
fourth equation, he would use the answers of the three existing equations:
C*F=I
Now the only question in his mind was, "Can I replace the letters A through I
with the digits 1 through 9 in such a way that all four of my equations are
correct?" (Use 1-9 each only once for the variables A - I)
Week of October 26th:
Week of Nov. 2nd:
Week of Nov. 9th
Week of Nov. 16th:
Week of Nov 23rd:
Week of Nov. 30th:
Week of Dec 7th:
Week of Dec. 14th:
Week of Jan 4th:
Week of Jan. 11th:
Week of Jan 18th:
Week of Jan. 25th:
Week of Feb. 1st:
Week of Feb 8th:
Week of Feb. 16th:
Week of Feb. 22nd:
Week of March 1st:
Week of March 8th:
Week of March 15th:
Week of March 22nd:
Week of March 29th:
Week of April 6th:
Week of April 12th: