Loading ad... StefiMember for 2 years 10 months Age: 7-14 Level: 3 Language: Bulgarian (bg) ID: 1206876 28/07/2021 Country code: BG Country: Bulgaria School subject: Математика (1061855) Main content: Събиране и изваждане (2026401) Събиране с нула Other contents: числа Loading ad... Share / Print Worksheet Google Classroom Microsoft Teams Facebook Pinterest Twitter Whatsapp Download PDF Loading ad...