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# | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

#

1070.31 7 and 11 Become Even

A

1100.51 Agatha the Cow
2460.81 Ages as Perfect Square
1540.34 Aggie's Eggs
1510.41 Alex Watt's Will (Scotland)
3070.11 Algebra with Angles
1730.41 All the Money You Need
1000.65 Alphabet Line 1
4050.11 Angles of a Triangle
1230.47 Ant, Bat, Cat
1550.33 Apollo Ticket Prices
1540.35 Apples on Hike
3320.11 Area Ratio, Circles and Square 1
2454.11 Arithmetic Mean & Geometric Mean
1230.33 Athletes
2410.12 Audio Equipment

B

2470.11 Backlot Books
1000.55 Bagpipers
1640.31 Ball-Point Pens on Sale
2470.21 Barbells Sale
3470.61 Barber Pole
2870.11 Basketball Bounces
2452.14 Basketball Team Weight
2140.21 Beakers, Ratio of Acid to Water
2440.11 Beef Stroganoff
2410.13 Bertha's Tax
2580.11 Big f(x), Find f(6)
3440.12 Billy the Goat
2480.11 Birthday Present (Dimes, Quarters)
1090.71 Blue Cube, 27 Little Cubes
1190.51 Bonkers Calendar
1540.36 Bread on Hike
1550.26 Brick on 2-Pan Scale
2420.62 Brick Wall Without Picture
1540.41 Brine Tank
1000.76 Broken Line Proof
1480.41 Broken Radical Key
1180.61 Brothers and Sisters
1232.31 Burglary Witnesses

C

1090.26 Cake Cutting
3150.11 Calculating With Supplements
2070.51 Calendar Square of Dates: Formula
1170.42 Can't Change a Dollar Bill
1000.54 Canoe Swapping Places
1230.41 Card Players Around a Table
2230.81 Cat Burglar, Crate
1190.31 Charlie & LaQuanda
1210.21 Cheerleaders' Three Hats
1230.71 Chemistry Puzzle
1650.13 Chinese Restaurant Party
2770.41 Circle & Triangle
3500.31 Circle Around 3 Squares
3440.31 Circular Lawn with Path
4140.11 Circumference
3470.13 Clairbuoyant
1000.92 Classroom Chairs
1000.72 Clock Hands Overlap
3550.24 Clock Hands Overlap After Noon
2310.21 Coffee Break
2761.12 Collinear Vertices of Squares
2440.31 Columbus to Cincinnati
1180.32 Commuting, Bus and Train
1470.52 Comparative Heartbeats Per Year
2465.21 Complicated Ages (Andrea, Bonnie)
3070.12 Conjecture About Angles
1307.31 Consecutive Integers, Sum of 100
1307.11 Consecutive Integers, Sum of 17798
2162.11 Continued Fraction with 1's and 3's
1230.21 The Cook, the Baker, and the Miller
1020.12 Covered Shapes
2500.61 Cows, Horses, Sheep in Pasture
1079.11 Crabcake
1120.11 Crossnumber Puzzle 1
3850.14 Crumbs on a Table
1160.32 Crypt-Prod: Digits Used Once 1
1160.31 Crypto-Product
1090.22 Cube Frame, Vertices Numbered
1090.33 Cube Pattern
1090.21 Cube Vertices, Numbered
1090.34 Cube View 1
1090.35 Cube View 2
1090.36 Cube View 3
1090.73 Cube With 6 Cuts
1090.72 Cube, Orange, Cut Up
1090.74 Cube, Yellow
2122.11 Cubic Factoring
2680.11 Cubic to Quadratic to Linear
3650.41 Cylinders, Pouring Contents

D

2442.52 Daniel Boone, Plum Creek
1190.52 Day Before Yesterday
1365.11 Decimals on Calculator Screen
2510.31 Defined Operation 2; 5 Parts
2530.31 Defined Operation; Do Inverse
2530.11 Defined Operation; Find Formula
2510.11 Defined Operations 1
2530.41 Defined Operations 1; Do Composition
2510.21 Defined Operations 2
2530.51 Defined Operations 2; Do Composition
2530.52 Defined Operations 3; Do Composition
3305.11 Diagonals of Two Regular Polygons
2150.11 Difference of Reciprocals
1110.41 Digit Cells
1410.11 Digits in Number in Exponential Form
1320.11 Digits in Product
1170.21 Dimes and Pennies
3470.21 Distance
1140.14 Dividing Soda (24; 5, 11, 13)
1650.31 Divisibility Theorem (Sum)
2452.12 Doctors and Lawyers
1550.22 Dogs and Ducks
1180.37 Dogs, Cats, Snakes
1000.91 Domino Chessboard
1650.21 Dorothy Eggs
1470.53 Dripping Faucet
2440.32 Driving to Atlanta
2440.13 Driving to Cleveland
2440.33 Driving to See Grandmother

E

F

2260.21 Factor Fourth Degree Equation
2470.52 Fair Trade
1250.11 False Coins 1
1250.12 False Coins 2 (9, Heavy, 2)
1250.13 False Coins 3 (9, ?, 3)
1510.42 Farmer Fox Herd of Cows
2310.11 Farmers' Market, Chickens, Geese
1070.33 Fathers and Sons
3440.43 Fences in Circular Region
2452.13 Fifty Members of Group
2760.21 Find Adjacent Corner of Square
3232.11 Find Altitude, Given Sides
3530.11 Find Diameter of Circle
2580.41 Find f(7) in 7th Power Equation
2580.21 Find f(x+1) - f(x)
3155.61 Find Lengths of Two Sides
1220.11 Five Houses, Lemonade, Camel
1000.21 Floor Tile Reflection 1
1000.22 Floor Tile Reflection 2
1000.23 Floor Tile Reflection 3
2440.74 Fly Between Trains
2440.62 Formula for Necessary Return Speed
2070.12 Formula for Oranges
2070.82 Formula: Recursive to Closed
2410.23 Foul Shots
2050.21 Four 4's: 1 - 20
2050.22 Four 4's: 21 - 40
1180.85 Four Errors
2150.42 Fraction Equals c/d
2210.11 Fraction Inequality
2544.11 Function as Average

G

2490.32 Garden Crops
1027.44 Gardens, Congruent
1540.51 Gas Bill Printing
2870.21 Geometric and Arithmetric Sequences
3500.51 Gertrude Goldfish
2710.11 Giant Binomial Squared
3550.21 Giant Clock, Bug Speed
2260.11 Giant Difference of Squares
2110.12 Giant Distributive Law = 0
1470.41 Giant Sum
1180.43 Gleepers & Blahmies
1230.44 Glenda Quiz
2420.51 Glenice's Candles
1270.13 Globs/Glitches
1540.21 Golden Oldies
2230.22 Golden Ratio
1000.53 Goldfish Pond
3680.21 Grasshopper Jump
1100.71 Grocer's Scales (Martha)
1300.11 Guess the Number
1230.11 Gunny Sacks
1290.14 Gym Class

H

1260.01 Handshakes (24, 1)
1260.02 Handshakes (n, 1)
1260.21 Handshakes, Fly on the Wall (36)
2580.51 Hard Functional Equation, f(n) = n
3420.71 Hard Triangle Area in Square
2440.77 Harry the Hobo
1540.33 Hattie's Age in 1900
2500.31 Heads and Feet (Easy)
1510.11 Heap, Egyptian Equation
1470.51 Heartbeats per Month
2420.11 Hen and a Half
2420.12 Hen and a Half, Variables
1280.11 Highland Island 1 (C, P)
1280.12 Highland Island 2 (C, P)
1180.81 Horse Race (Bedouin)
1180.22 Horse Trading
1550.43 Horse, Mule, Golden Trinkets
1550.16 Horses and Harness
2420.21 Horses and Oats, Numbers
1180.36 Hospital Staff (Doctors, Nurses)

I

3510.11 Identify the Shape
2110.34 If x + y + z = 1, then ...
2470.41 Importing Truffles
3405.12 Impossible Rectangle
2210.51 Inequalities, Several
2210.21 Inequality
2210.41 Inequality as Distance
2211.11 Inequality with 2 Absolute Values
2210.32 Inequality with Fractions
2210.81 Inequality with Radicals
3470.14 Interior Segments of Square
2310.31 Intersecting Lines

J

K

L

4220.21 Latitude of Flight
4200.23 The Lighthouse
1070.11 Limerick
1000.45 Line Fragments 1
1000.46 Line Fragments 2
1000.47 Line Fragments 3
3460.11 Line Splits Triangle Into Equal Areas
1070.16 Log Saw (Woodie Lott)
1310.32 Lookout Tower
1000.12 Looping Paths

M

N

1000.26 Nasty Book Page Fold
1610.31 Nasty Numbers
3750.21 Negation, Kmart Barbells
1380.31 Negative Number Products
1470.12 Newspaper Tearing & Stacking
2500.62 Newton's Cows
2070.71 Next Perfect Square
1040.21 Nine Cherry Trees
1030.11 Nine Dots
1000.41 Non-Intersecting Paths on Grid
2200.11 Number of Positive Integer Solutions

O

P

1510.21 Pamela Gore
2310.41 Parking
2070.84 Particle Moving
1027.11 Partition Shape 1 (Berloquin)
1170.91 Path of Quarters
1340.41 Paths to LOVE
1340.42 Paths to MISERABLE
1000.81 Pattern Continuation
1000.82 Pattern Continuation (Acropolis)
3650.11 Peanut Butter Jar
1070.14 Pencil and Notebook
1370.21 Percent Calculation
1370.11 Percent Gain and Loss
3320.21 Perimeter Ratio, Squares
2500.11 Pet Rocks
1560.21 Pickanumba, Give Digits
1560.11 Pickanumba, Result is 2
1270.11 Pigeonhole Principle (Original)
1070.15 Pirate Queen
4220.22 Plane Speed = f(Latitude)
2420.31 Plants to Water
1230.51 Playing Cards Arrangement
2070.61 Plywood, Circular Holes
2210.71 Points on Line Making Triangle
3050.12 Points on Line Segment
1000.61 Poison Pills
2410.42 Pompeii Geothermal Corp. Wages
2020.11 Powers of n + i
2460.28 Present and Future Ages 2
2460.29 Present and Future Ages 3
1610.12 Primes in Product
1180.66 The Problem Before... After...
2110.31 Product + 1
1720.11 Product = TTT
2211.21 Product with Absolute Value
2232.11 Progression to Quadratic
1490.21 Prom Band

Q

2288.11 Quadratic Leading to x = y = z
2230.11 Quadratic to Multiply & Factor
2230.63 Quadratic, Difference of Roots is 1
1100.22 Quasi-Pascal Triangle
1000.93 Queens on a Chessboard

R

2180.11 Radical Has Real Values
1395.21 Radical in Radical
3470.12 Radio Antenna
2290.21 Ratio with Two Variables
2250.11 Rational Equation, Nice
2100.52 Rational Expressions, Laws of Exponents
2150.22 Reciprocal Equation
3360.21 Rectangle Decomposed Into Squares
2410.33 Rectangle Increase
1090.41 Rectangle, Make Boxes
1322.11 Remainder When Dividing by 13
1480.11 Repeating Digits in Addition
2440.75 Reservoir Running
1550.29 Restaurant Bill
3850.11 Rhombi, Locus of Vertex
1550.31 Rick's Bed
1180.62 Robins Here and There
4200.24 Rocket Launch
2440.15 The Rocket Sled
1050.61 Rolling Penny
1550.15 Rooster, Goose, Duck Prices

S

2530.73 Salary = f(n students)
2410.11 Salesman's Commission
1490.16 Sand Buying
1550.35 Sandwiches
1550.19 The Scale
1255.11 Scales
1550.21 Scooters and Tricycles
1000.75 Scott the Painter
1110.61 Security Guards
2784.11 Semi-Elliptical Arch
3500.71 Semicircles
1160.11 Send More Money
2580.61 Sequence Formula
3440.51 Seven Circles in Large One
1550.11 Shelley, Veronica, Christy, and Ruth
1550.42 Sheriff Election
1180.41 Sherman & Cyrus
3155.41 Show Angle is 30°
1550.24 Sibyl Dibble
2660.11 Simplify Complex Polynomial
4040.11 Sin x = x/100
2850.21 Sit-Ups
2050.41 Six 9's Make 100
2850.48 Six Sequences to Continue
1070.13 Snail in a Well
1232.11 Soccer Game Scores 1
2470.62 Solar Panel
2440.52 Speedboat
1070.18 Spend All But $3.00
3640.11 Sphere Packed in Box
3550.23 Spinning in Circles
1080.12 Spiral Illusion
1000.11 Spirals
1230.52 Spirit Week Bake Sale Booth
3420.41 Split Parallelogram Area
1550.36 Splitting Up 64
1280.21 Spying on Student Council
1010.41 Square Sequences 1 (3 x 3)
1010.42 Square Sequences 2 (3 x 3)
3420.28 Squares, Shaded Area
3500.41 Stack of Water Pipes
2500.12 Stationery
1510.51 Stella's Bookshelves
1368.21 Sum of Big Fractions
3310.11 Sum of Interior Angles
2761.11 Sum of Slopes of Sides of Triangle
1380.11 Sum, Sum of Squares
1230.34 Super Duper Market
1310.25 Super-Venn (Sums in Circles)
2490.11 Supermarket, Apples

T

3750.74 Tangalese People Non-Toxic
4050.12 Tangent Circles, Area of Shaded Region
1540.61 Tape Sale
1310.41 Target
1040.11 Ten Peach Trees
1230.36 Tennis Playing Family
1180.65 Tennis Tournament
1000.31 Tent Among Four Trees
1070.12 This Man's Father
2430.11 Three Valves
1490.31 Tie-Dyed T-Shirts
2220.11 Timbuktu Post Office
1170.92 Ton of Pennies
1180.23 Tony's Hat
1060.41 Toothpicks: 5 Squares to 4 Squares
1090.42 Toothpicks: 6 Make 4 Triangles
1060.11 Toothpicks: 6 Squares to 4 Squares
1170.94 Total Growth
1510.52 Totem Pole
1550.14 Toy Rocket
1007.21 Trace Ellipse Network
1007.11 Trace Path Through House
2761.13 Trapezoid Formed By Lines
3580.11 Trapezoid, Similar Triangles
1550.25 Tree and Pole
1050.11 Triangle of Pennies
3850.12 Triangle Rotating in Square
2500.21 Triangle, Sides, and Perimeter
2140.11 Triple Ratio
3750.41 True Statements on Card
2260.41 Two Cubes, Volume = Edges
1140.11 Two Pails

U

2850.49 Unusual Sequence

V

W

X

2100.21 x^y = y^x

Y

Z

1180.45 Zetters & Zuffers