Problem not likely on the SAT illustrates two math principles that are needed for the SAT: product of the power and identity. I will challenge my nine-year-old student to this algebra problem. Alexander is unusual. He can do the steps for solving problems but does not want to and might be saving these tasks for another day! I post math that challenges me and to see if you can do it, or learn how, which is fun. I think so.
Even 2 to the 9th power can be done without a calculator. Break it up, and I would multiply 513 x 511.