Improve Imagination?

How can I improve my imagination, When I start thinking about something its picture is faded one, when I do some type of multiplication I try to answer quick most of times my answer is wrong, Please how to overcome it.Improve Imagination?
lots of reading.. reading books improve your imagination a lot more than TV or video games ever could.. because when you're reading, you're imagining the characters surrounded by your mind.. when you're watching TV, you don't have to use your imagination at adjectives..
Read books. Anything that stimulates your mind and creative thinking, especially the right side of your brain, the "creative" side, will help your imagination. You must practice using your imagination for it to add to. Art will improve your optical imagination, while working with music will rearrange your auditory imagination.
the imagination is the ability to assume in unrealistic expressions. you can help develope a better imagination basically by daydreaming about things regardless of whether they are believable or not. the more out of touch with actuality the picture is, the greater the imagination needs to be to generate it seem possible.
try writing a story, whether from former times, present or future, and see if it seem realistic to you. of late make sure you are the one to be the leading character if it be real.
you might also try reading different types of books, sci-fi, western, spy, and even poetic, are some of the most creative. just suppose of yourself as the main role.