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.
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| Visual Problems | 1000 – 1170 |
| Logical Deduction | 1180 – 1290, 3750 |
| Arithmetic | 1300 – 2022 |
| Symbol Manipulation | 2030 – 2390, 2745, 4100 |
| Algebra Problems | 2400 – 2500 |
| Analytic Geometry | 2750 – 2840, 3680 – 3723 |
| Informal Geometry | 3000 – 3080 |
| Euclidean Geometry | 3100 – 3650, 3750 – 3850 |
| Trigonometry | 4000 – 4340 |
| Probability | 4400 – 4420 |
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| 1009.21 | Squares on a Checkerboard |
| 1009.31 | Counting Squares |
| 1009.41 | Squares on a Lattice |
| 1079.41 | Word Triangle Arithmetic |
| 1230.46 | Tina's Trip |
| 1230.55 | Letters and Envelopes |
| 1240.11 | A Fox, a Goose, and a Bag of Corn |
| 1240.12 | Four Men, Two Boys, and a Boat |
| 1310.61 | Never 100 |
| 1600.31 | Getting to Fort Wayne |
| 1640.61 | The Largest What! The Smallest What! |
| 2070.33 | A Rectangular Box |
| 2070.83 | Bowling Uphill |
| 2150.72 | Find the Equivalent |
| 2440.21 | Duckburg to Possumtown |
| 2440.70 | Snow Tires Versus Ordinary Tires |
| 2440.82 | Gabriela and her Chauffeur |
| 2440.93 | Train Speed |
| 2460.15 | The Year the Old Cow Died |
| 2740.11 | Relating Two Logs |
| 2850.61 | 1, 2, 2, 1, 1, 2, 1, 2, 2 . . . |
| 2890.11 | Fibonacci Numbers Mod 11 |
| 3060.53 | Red and Blue Point Parallelogram |
| 3160.11 | Triangle ABC is Isosceles |
| 3261.11 | Quadrilateral BCDF is a Rhombus |
| 3420.12 | Two Squares |
| 3420.22 | The Area of a Cross |
| 3420.25 | The Sum of Two Triangles |
| 3420.26 | Area of a Hexagon |
| 3420.51 | Area of a Regular Pentagon |
| 3440.61 | Design for a Pendant |
| 3440.62 | Area of an Axe Head |
| 3470.51 | A Triangle in a Circle |
| 3500.21 | Midpoint of a Chord? |
| 3650.13 | A Solid Cube of Bricks? |
| 3650.21 | Two Barrels |
| 4200.11 | Tetrahedron Cutoffs |
| 4220.11 | View to the Horizon |