What kinds of behavior can lead you to believe that a child does not have a solid understanding of the base-ten system?

struggling behavior in answering base-ten system

Explanation:

When a child is given a question on such question, and he/she struggles with it, he keeps asking questions relating to the question, shows that he is doesn't not understand that topic.

Most children exhibit different kind of attitude when asked a question relating to a topic or aspect they have been taught. when a child doesn't feel excited to answer the question, show he does not like the question or he is struggling with the question. So that struggling behavior explains that he does not have a firm understanding to such question as the base-ten system

south, because if you took a map you would see texas is directly in the middle of east and west, but it is also downwards towards mexico, therefore it is south

answer; archaeologists;