| 7821 | ADV-143 扶老奶奶过街 | 2/2 | |
| 7822 | ADV-124 凶手 | 1/1 | |
| 7823 | 晨跑 | 1/1 | |
| 7824 | 珠心算测验 | 0/1 | |
| 7825 | 比例简化 | 1/2 | |
| 7826 | 子矩阵 | 1/1 | |
| 7827 | Problem C: Primary Arithmetic | 1/1 | |
| 7828 | Problem B: Tight words | 1/1 | |
| 7829 | Problem C: WERTYU | 1/1 | |
| 7830 | Problem D: Division | 1/1 | |
| 7831 | Problem E: Hotter Colder | 1/1 | |
| 7832 | Problem B - Subway | 1/1 | |
| 7833 | Problem E - Ones | 2/2 | |
| 7834 | Problem A: Average Speed | 1/1 | |
| 7835 | Problem B: Discrete Logging | 1/1 | |
| 7836 | 换零钱 [1*] | 3/4 | |
| 7837 | Problem E: A Star not a Tree? | 1/1 | |
| 7838 | Problem A: Hay Points | 1/1 | |
| 7839 | Problem B: Jogging Trails | 1/1 | |
| 7840 | Problem C: Beavergnaw | 1/1 | |
| 7841 | Problem E: Relatives | 2/2 | |
| 7842 | Problem A: Trains | 1/1 | |
| 7843 | Problem B: Tic Tac Toe | 1/1 | |
| 7844 | Problem C: Square | 1/1 | |
| 7845 | Temple of Dune | 1/1 | |
| 7846 | Ferry Loading II | 1/1 | |
| 7847 | Basic | 1/1 | |
| 7848 | Dumb Bones | 1/1 | |
| 7849 | Combination Lock | 1/1 | |
| 7850 | Dead Fraction | 1/1 | |
| 7851 | Biometrics | 1/1 | |
| 7852 | Perfect Pth Powers | 1/1 | |
| 7853 | Expanding Rods | 1/1 | |
| 7854 | Cat | 0/1 | |
| 7855 | Evil Straw Warts Live | 1/1 | |
| 7856 | Mint | 1/1 | |
| 7857 | Ants | 1/1 | |
| 7858 | Practice | 1/1 | |
| 7859 | Test | 1/1 | |
| 7860 | Great Circle | 1/1 | |
| 7861 | Up the Ante | 1/1 | |
| 7862 | Beat the Spread! | 1/1 | |
| 7863 | Traditional BINGO | 1/1 | |
| 7864 | Bungee Jumping | 1/1 | |
| 7865 | So you want to be a 2n-aire | 1/1 | |
| 7866 | Structural Equivalence | 1/1 | |
| 7867 | Factstone Benchmark | 1/1 | |
| 7868 | Tri Tiling | 1/1 | |
| 7869 | Educational journey | 2/2 | |
| 7870 | Go | 1/1 | |
