Sumas de números de dos cifras

Cálculo, an interactive worksheet by Fatima_Villamel
liveworksheets.com

Sumas de decenas, an interactive worksheet by AINEEOLVERA
liveworksheets.com

Sumas, an interactive worksheet by 1713316345
liveworksheets.com

Sumas de decenas, an interactive worksheet by AINEEOLVERA
liveworksheets.com