Was this a hard math problem, or did you get the answer right? To open this safe, you have to replace the question marks with ...

A team of AI researchers and mathematicians affiliated with several institutions in the U.S. and the U.K. has developed a ...

What generally makes math questions difficult is the layers that they contain. If you look carefully at your latest math homework, for instance, you will probably notice that the single-step ...

As for sequencing, while SAT math questions tend to be ordered from easiest to most difficult, know that the first few grid-in questions are easier than the last few multiple-choice questions.