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
1000.15Telling Time Backwards, Part I
1000.16Telling Time Backwards, Part II
1000.56Yearbooks Meet Bookworm
1070.16Woodie Lott
1090.41Cutting a Rectangle
1090.51Stark, Raving Bonkers
1130.11A Magic Square with Primes
1140.14Sharing Soda
1170.93The Weight of 1000 Dollars in Dimes
1180.62Robins Here and There
1410.11How Many Digits?
1510.22Pebble's Long Life
1510.51Stella's Musical Scores
1530.33I Have a Good Friend in Maumee
2070.13The Price of a Dozen Kumquats
2140.11Triple Ratio
2162.11An Infinite Continued Fraction
2200.11Positive Integer Solutions: Count Them
2200.21An Equation with Fractions
2211.21Product with an Absolute Value
2230.11DON'T GUESS!
2410.13Bertha's Tax
2420.51Glenice Burns her Candles
2440.32Driving to Atlanta
2440.33Susu the Cat
2460.28Present and Future Ages II
2770.51Moving Line
3060.51Red and Blue Point Line Segment
3320.11A Ratio of Areas
3550.24Put Your Hands Together
3750.13Wind Farm Fun Facts
3750.41Find the Falsehoods
4200.24Rocket Launch