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[@proferichard](/creator/youtube/proferichard)
"✅👉 Regla de tres directa"  
[YouTube Link](https://youtube.com/watch?v=Qk8bOEh3dQY) [@proferichard](/creator/youtube/proferichard) 2021-09-04T04:11Z 367K followers, 360.9K engagements


"✅👉 EJE de Simetria de una Funcion Cuadratica"  
[YouTube Link](https://youtube.com/watch?v=FXtDoI0PP54) [@proferichard](/creator/youtube/proferichard) 2023-05-20T21:00Z 367K followers, 47.9K engagements


"✅👉Restas sin llevar de X cifra"  
[YouTube Link](https://youtube.com/watch?v=Rxm1mHK3i8M) [@proferichard](/creator/youtube/proferichard) 2025-10-20T15:00Z 367K followers, XXX engagements


"✅👉Restar dos decimales"  
[YouTube Link](https://youtube.com/watch?v=31yG4nzbNKs) [@proferichard](/creator/youtube/proferichard) 2025-10-18T19:00Z 367K followers, XXX engagements


"✅👉Restas sin llevar de X cifras"  
[YouTube Link](https://youtube.com/watch?v=GckFRVnxxvw) [@proferichard](/creator/youtube/proferichard) 2025-10-19T23:00Z 367K followers, 5017 engagements


"✅👉Restas sin llevar de X cifras"  
[YouTube Link](https://youtube.com/watch?v=OVtT2BX0iPA) [@proferichard](/creator/youtube/proferichard) 2025-10-19T19:00Z 367K followers, 5314 engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=OZrFYLVl2lE) [@proferichard](/creator/youtube/proferichard) 2025-10-20T01:00Z 367K followers, 3441 engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=ZUCXV3xewxI) [@proferichard](/creator/youtube/proferichard) 2025-10-19T20:00Z 367K followers, 7522 engagements


"✅👉Restas sin llevar de X cifras"  
[YouTube Link](https://youtube.com/watch?v=brxqKnzYWQ8) [@proferichard](/creator/youtube/proferichard) 2025-10-19T21:00Z 367K followers, 1048 engagements


"✅👉Restas sin llevar de X cifras"  
[YouTube Link](https://youtube.com/watch?v=gj3gn-VMbec) [@proferichard](/creator/youtube/proferichard) 2025-10-19T17:01Z 367K followers, XXX engagements


"✅👉 Como dividir facil y rapido"  
[YouTube Link](https://youtube.com/watch?v=vec_luO1UYo) [@proferichard](/creator/youtube/proferichard) 2021-09-03T00:25Z 367K followers, 934.5K engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=CzuJGBLA9IA) [@proferichard](/creator/youtube/proferichard) 2025-10-18T01:00Z 367K followers, 45K engagements


"✅👉Restar dos decimales"  
[YouTube Link](https://youtube.com/watch?v=I9VqEpxeA0M) [@proferichard](/creator/youtube/proferichard) 2025-10-18T17:00Z 367K followers, 7077 engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=Lcbl1_vZ7tc) [@proferichard](/creator/youtube/proferichard) 2025-10-19T01:00Z 367K followers, 39.1K engagements


"✅👉Restar prestando con ceros"  
[YouTube Link](https://youtube.com/watch?v=SqsBjM2-6rk) [@proferichard](/creator/youtube/proferichard) 2025-10-18T21:00Z 367K followers, 1244 engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=Z6NzRcmdMGk) [@proferichard](/creator/youtube/proferichard) 2025-10-18T20:00Z 367K followers, 35.4K engagements


"✅👉 Reto matemtico #matematicasfacil #mathematicalproblem #matematicas"  
[YouTube Link](https://youtube.com/watch?v=csy1jKR5os0) [@proferichard](/creator/youtube/proferichard) 2025-10-16T20:00Z 367K followers, 17.7K engagements