20 + 40, 30 + 70

Age: 7-8
Level: 1
Language: Bulgarian (bg)
ID: 192376
15/05/2020
Country code: BG
Country: Bulgaria
School subject: Математика (1061855)
Main content: Събиране (1988503)
From worksheet author:

Събиране с кръгли десетици

Other contents:
Упражнение

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20 + 40, 30 + 70
20 + 40, 30 + 70

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