25 December 2020

• 09:5709:57, 25 December 2020 diff hist +1 Combination →Video
• 09:5709:57, 25 December 2020 diff hist +65 Combination →Video
• 09:5709:57, 25 December 2020 diff hist +36 Permutation →Video
• 09:5609:56, 25 December 2020 diff hist +29 Permutation →Video

24 December 2020

• 14:2714:27, 24 December 2020 diff hist +140 Logarithm →Powerful use of logarithms
• 14:2514:25, 24 December 2020 diff hist +139 Logarithm →Powerful use of logarithms
• 14:2114:21, 24 December 2020 diff hist +92 Least common multiple →How to find
• 14:1714:17, 24 December 2020 diff hist +8 Order of operations →Order Of Operations
• 14:1614:16, 24 December 2020 diff hist +79 Order of operations →Examples

23 December 2020

• 15:1015:10, 23 December 2020 diff hist +66 Factorial →Definition
• 15:0715:07, 23 December 2020 diff hist +22 Arithmetic sequence →Arithmetic Sequence Video
• 15:0315:03, 23 December 2020 diff hist +62 Arithmetic sequence →Definition