- Tele-Plus - Terry Trotter
Algebra, difficulty level 1. Find the cost of one phone that is part of a three-in-one communications package deal.
...more>>
- Tennis Anyone? - Ethel Breuche
Algebra, difficulty level 1. Use algebra, inequalities, and ratios to find the greatest number of matches a player could have won before the weekend to achieve the win ratio of .503 after the weekend.
...more>>
- The North Hunterdon Triangle - Annie Fetter
Geometry, difficulty level 2. Given points O:(0,0) and Q:(a,0), describe the possible locations of
point P such that triangle OPQ is first isosceles and then equilateral.
...more>>
- Three Consecutive Integers - Annie Fetter
Algebra, difficulty level 1. Use a variable to explain an interesting relationship that can be found between three consecutive integers.
...more>>
- The Three Jelly Bean Jars - Terry Trotter
Algebra, difficulty level 2. Three brothers buy jelly beans. The jelly beans are in jars that are three different sizes. How many jelly beans does each brother buy?
...more>>
- Tiffany's Triumphs - Terry Trotter
Algebra, difficulty level 1. Given the number of games that Tiffany has played so far and the number that she has won, how many games would she have to win in a row to get her winning percentage up to 60%?
...more>>
- Timber!!! - Lisa and Judy Gardner
Math Fundamentals, difficulty level 3. Determine the lengths of two pieces of a damaged redwood tree.
...more>>
- Time Trial Triumphs - Steve Risberg, Terry Trotter, and Annie Fetter
Algebra, difficulty level 2. At 9:05 a.m. Ernesto starts riding at a speed of 440 yards per
minute. At 9:20 a.m. Johnny starts riding, but he's going 20% faster
than his little brother. At what time, to the nearest minute, will
Johnny catch Ernesto?
...more>>
- To Grandmother's House We Go - Ethel Breuche
Algebra, difficulty level 4. Red Riding Hood goes to visit Grandmother for the holidays at the same time that Grandmother heads out to visit Red. What is the ratio of their speeds?
...more>>
- Touchdown Toddlers - Terry Trotter
Algebra, difficulty level 2. Two little boys run an unusual race on a professional football field, and everybody comes out a winner!
...more>>
- Triangle Probability - Annie Fetter
Algebra, difficulty level 3. A point is randomly selected from within a triangle with vertices at (0,0), (0,4) and (6,0). What is the probability that the x-coordinate of the selected point is less than the y-coordinate?
...more>>
- A Triangle's Area - Canadian Open Math Challenge 1999 via Tim Lang
Algebra, difficulty level 3. Find the "b" values of two lines needed to form two congruent triangles of a given area.
...more>>
- Triangular Number Identities - Terry Trotter
Algebra, difficulty level 3. Prove two famous theorems of ancient number theory: the sum of any two consecutive triangular numbers is a square number, and the product of 8 and any triangular number, increased by 1, is a square number.
...more>>
- Tribonacci - Terry Trotter
Algebra, difficulty level 3. Find the second and third terms of a "Tribonacci" sequence.
...more>>
- Trick-or-Treat Box - Terry Trotter
Algebra, difficulty level 1. Harvey and his classmates make trick-or-treat boxes in math class and use a special formula to find the volumes.
...more>>
- Two for Two - Annie Fetter
Algebra, difficulty level 3. Two numbers have a ratio of 5:3. The larger number is 36 more than half the difference of the two numbers. What are the two numbers?
...more>>
- Two for Two More - Annie Fetter
Algebra, difficulty level 3. Two numbers have a ratio of 4:3. The greater number is 60 more than 8 times their difference. What could the two numbers be?
...more>>
- The Unhappy Carpenter - Ethel Breuche
Algebra, difficulty level 1. A carpenter agrees to be paid a certain amount of money when she works, and to repay money on the days she doesn't work. Find the number of days she worked if she earned $77.00.
...more>>
- Up the Down Elevator - Ethel Breuche
Algebra, difficulty level 2. Juanita has to use a freight elevator to deliver packages but can use the passenger elevator to return. What is her average speed for the entire trip?
...more>>
- Valentine Candy - Ethel Breuche
Algebra, difficulty level 2. A vendor who sells Valentine candy boxes wants to raise the price. For every twenty-five-cent increase he loses two customers. At what price should he sell the boxes to achieve the maximum profit?
...more>>
- Voter Turnout - Steve Risberg
Algebra, difficulty level 2. A group of students collected data on voter turnout for the recent
election and plotted graphs broken down by age groups. Can you match
each age group with its graph?
...more>>
- Walter's Weird Wages - Terry Trotter
Algebra, difficulty level 2. Walter's eccentric parents give their son his housework wages in a strange way. Can you determine how much he receives?
...more>>
- The Way the Crazy Crow Flies - Janet Bowers
Algebra, difficulty level 3. A crazy crow flies back and forth between two trains that are approaching each other on parallel tracks. How far does the crow fly?
...more>>
- The Weight of Bart's Brick - Terry Trotter
Algebra, difficulty level 1. Bart was asked by his construction foreman about the weight of a brick. Bart's answer befuddled his boss. (But not you.)
...more>>
- What's My Angle? - Terry Trotter
Algebra, difficulty level 3. Using concepts of vertical angles and supplementary angles, solve two quadratic expressions to find the measure of a given angle.
...more>>
- What's My Line? - Terry Trotter
Algebra, difficulty level 1. Given a set of eight points in the Cartesian plane, find the three that are collinear.
...more>>
- What's the Temperature - Annie Fetter
Algebra, difficulty level 1. At what temperature do you get the same answer, regardless of
whether
you use the Fahrenheit or the Celsius scale?
...more>>
- What's what? - Terry Trotter (author unknown)
Algebra, difficulty level 2. A poetical puzzle to ponder about: "What is WHAT?"
...more>>
- Where Does Mrs. Darien Live? - Judy Ann Brown
Middle School, difficulty level 2. Use clues to help Mrs. Darien's students find her house number.
...more>>
- The World's Meanest Math Teacher - Bill Graham
Algebra, difficulty level 3. Students seated around a circular table are being systematically eliminated. What's the rule to follow to be the last one eliminated?
...more>>
- Wreck Tangle - Steve Risberg
Algebra, difficulty level 2. When the width of a given rectangle is tripled and the length is
doubled, the perimeter increases by 92 cm. Find the area of the
original rectangle.
...more>>
- X Marks the Spot - Terry Trotter
Algebra, difficulty level 3. A Spanish pirate buries his treasure on an island in a very mathematical manner. Can you locate the "X" spot?
...more>>
| |
|
The Math Forum is a research and educational enterprise of the Drexel School of Education.