According to your answer, it looks like you could use some help multiplying several digits together. We recommend starting with Volume 1 of the Learn Math Fast System. We can teach you a simple trick, so you can multiply this problem in your mind.
RESULTS: 3rd Grade Level, however, the Learn Math Fast System is for all ages. Volume 1 covers all math facts to build a solid foundation in math. There is no mention of grade level within the books.