Problems

Here's a basic chart showing what's where in this long list of problems. There are two fully detailed lists in the User Guide:  SDS Topics in Alphabetical Order and SDS Topics in Numerical Order.

TopicStella Number
Visual Problems1000 – 1170
Logical Deduction1180 – 1290, 3750
Arithmetic1300 – 2022
Symbol Manipulation2030 – 2390, 2745, 4100
Algebra Problems2400 – 2500
Analytic Geometry2750 – 2840, 3680 – 3723
Informal Geometry3000 – 3080
Euclidean Geometry3100 – 3650, 3750 – 3850
Trigonometry4000 – 4340
Probability4400 – 4420

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Stella NumberProblem Title
1170.23Yearbook Earnings
1170.24Dimes and Pennies
1190.17Digital Clock Minutes
1320.11The Number of Digits in a Product
1322.11Giant Powers of 3
1368.21Torture with Fractions
1368.31What's That Fraction?
1490.31Tie-Dyed T-Shirts
1510.11Heap: An Egyptian Equation
1510.21Pamela Gore
1510.51Stella's Musical Scores
1510.52Totem Pole
1540.36Conquest of Bread
1540.37Celeste in Obieland
1540.61Tape Sale
1540.71Stella's Barbecue
1540.72Waterbed Weight
1550.35Sandwiches
1550.38Bananas and Pears
1610.31Nasty Numbers
2050.21Four Fours: One to Twenty
2050.22Four 4’s: 21 – 40
2140.31Gear Wheels
2200.21An Equation with Fractions
2230.22The Golden Ratio
2260.31Outrageous Cube Root
2410.11A Salesman's Commission
2410.12Spend or Save?
2440.32Driving to Atlanta
2440.52Wilbur's Boat Trip
2452.31Strange Batting Average
2470.11Backlot Books
2470.21The Barbell Exchange
2480.11A Birthday Present in Dimes and Quarters
2580.61Sequence Formula
2850.611, 2, 2, 1, 1, 2, 1, 2, 2 . . .