Loading ad... ESTHER JMMember for 4 ปี 1 เดือน Age: 8-10 Level: Cuarto de Primaria Language: Spanish (es) ไอดี: 171525 09/05/2020 Country code: ES Country: Spain School subject: Matemáticas (1061956) Main content: Cálculo mental (2013175) Cálculo mental básico Loading ad... Share / Print Worksheet Google Classroom Microsoft Teams Facebook Pinterest Twitter Whatsapp Download PDF Loading ad...