Online Resource for ACT Math
In an arithmetic progression the difference between consecutive terms is a constant. For example, the sequence $3, 7, 11, 15, \ldots$ is an arithmetic progression where the consecutive terms are $4$ apart. If the first term of an arithmetic progression is $4$ and the last term is $54$, and the sum is $609$, then what is the third term?
ACT to allow students to retake individual sections of the test beginning September 2020. Also an ACT composite score with the highest section scores will be provided, also known as an ACT “superscore”. More details from official ACT blog on superscoring.
Here is a link to the playlist of video explanations to all of the math questions in the 2019 June ACT (Form B02) Test.
Here is a link to the playlist of video explanations to all of the math questions in the 2019 April ACT (Form B04) Test. The math section in the 2019 April ACT test was harder than usual, and this is clear from the scoring scale, which shows that one can miss 6 questions and still score a 34 on the mathematics. In the past, typically missing 4 questions would lead to a score of 34 on the ACT’s math section. With the increasing popularity of ACT, more of the traditional SAT takers have shifted to ACT, and as a result it has become more competitive at the upper end of scaled scores.