Samuel is an 8-year-old boy. he has difficulty solving numerical problems. hence, he is not able to solve any of the math tests given by his teacher. his teacher gave him extra assignments and made him attend some remedial classes so that he can improve, but these did not . his parents finally took him to a doctor, and the doctor diagnosed him with a learning disability called or developmental arithmetic disorder.

The correct answer is - Dyscalculia.

Explanation:

Dyscalculia is a learning disability where the person has difficulty when there is problem-solving like math subject. These people can do well in other subjects but have difficulties in mathematics.

In this scenario, Samuel has a problem in solving Mathematics problems clearly shows that he have Dyscalculia.

Thus, the correct answer is - Dyscalculia.

a. possible errors

d. new questions

explanation:

predictions and planning happen before. a summery comes after. errors you get after investigation and new questions propose what you can look for in the future.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".