Mental Calculation, Mathematics, and Puzzles


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1 7264 October 28, 2025
2 41 September 13, 2026
5 523 September 11, 2026
0 46 September 9, 2026
1 74 September 4, 2026
1 102 August 9, 2026
3 280 August 6, 2026
6 28060 July 27, 2026
20 2705 July 18, 2026
14 2359 July 16, 2026
10 3169 July 10, 2026
23 3089 July 8, 2026
9 4716 July 8, 2026
0 68 July 6, 2026
0 143 May 25, 2026
45 7644 May 18, 2026
3 277 May 16, 2026
0 159 April 25, 2026
7 298 March 23, 2026
12 1568 February 14, 2026
0 220 February 10, 2026
0 126 January 30, 2026
5 460 January 29, 2026
2 319 January 14, 2026
1 120 January 12, 2026
16 499 November 18, 2025
4 230 November 2, 2025
0 277 October 29, 2025
37 4619 October 26, 2025
1 1417 October 19, 2025