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

Filter Settings

Stella NumberProblem Title
1009.21Squares on a Checkerboard
1009.31Counting Squares
1009.41Squares on a Lattice
1079.41Word Triangle Arithmetic
1230.46Tina's Trip
1230.55Letters and Envelopes
1240.11A Fox, a Goose, and a Bag of Corn
1240.12Four Men, Two Boys, and a Boat
1310.61Never 100
1600.31Getting to Fort Wayne
1640.61The Largest What! The Smallest What!
2070.33A Rectangular Box
2070.83Bowling Uphill
2150.72Find the Equivalent
2440.21Duckburg to Possumtown
2440.70Snow Tires Versus Ordinary Tires
2440.82Gabriela and her Chauffeur
2440.93Train Speed
2460.15The Year the Old Cow Died
2740.11Relating Two Logs
2850.611, 2, 2, 1, 1, 2, 1, 2, 2 . . .
2890.11Fibonacci Numbers Mod 11
3060.53Red and Blue Point Parallelogram
3160.11Triangle ABC is Isosceles
3261.11Quadrilateral BCDF is a Rhombus
3420.12Two Squares
3420.22The Area of a Cross
3420.25The Sum of Two Triangles
3420.26Area of a Hexagon
3420.51Area of a Regular Pentagon
3440.61Design for a Pendant
3440.62Area of an Axe Head
3470.51A Triangle in a Circle
3500.21Midpoint of a Chord?
3650.13A Solid Cube of Bricks?
3650.21Two Barrels
4200.11Tetrahedron Cutoffs
4220.11View to the Horizon