Freeflows
All Problems
Prealgebra
Number
Theory
Counting and Probability
Precalculus
Geometry
Algebra
Intermediate Algebra
| Status | Title | Difficulty |
| 381. Fractional Radical Simplification | Level 5 | |
| 382. Copyright Arrangement | Level 2 | |
| 383. Radical Addition Puzzle | Level 3 | |
| 384. Prime Factorization Analysis | Level 3 | |
| 385. Prime Composite Product Difference | Level 4 | |
| 386. Prime Number Creation | Level 5 | |
| 387. Odd Square Counting | Level 3 | |
| 388. Common Multiple Finding | Level 1 | |
| 389. Unique Number Combinations | Level 5 | |
| 390. Exponential Factorization | Level 4 | |
| 391. Smallest Multiple Search | Level 2 | |
| 392. Algebraic Solution Finding | Level 3 | |
| 393. Cd Box Count | Level 1 | |
| 394. School Bus Ratio Analysis | Level 4 | |
| 395. Wallops Fallops Conversion | Level 4 | |
| 396. Reciprocal Division Puzzle | Level 4 | |
| 397. Proportional Sketch Measurement | Level 3 | |
| 398. Arithmetic Sequence Calculation 1 | Level 1 | |
| 399. Trestle Height Calculation | Level 4 | |
| 400. Relatively Prime Count | Level 5 |