Addition of 3 and 4 digits numbers.
English
Średnio zaawansowany
30
Pytań
3 min
Na pytanie
10:03
Średni czas
3,0
Wyniki konkursu
10
Uczestników
2 komentarze
Eager Clam
Question 10 does not have a correct answer. The use of words over illustration in the explanation of addition takes away from learning.
Happy Piranha autor
Thanks, suggestion also noted. I will check to edit it if possible to.
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