The Chicago Manual of Style recommends spelling out the numbers zero through one hundred and using figures thereafter—except for whole numbers used in combination with hundred , thousand , hundred thousand , million , billion , and beyond (., two hundred ; twenty-eight thousand ; three hundred thousand ; one million ). In Chicago style, as opposed to AP style, we would write four hundred , eight thousand , and twenty million with no numerals—but like AP, Chicago style would require numerals for 401 ; 8,012 ; and 20,040,086 .
Next, start at the beginning of your outline and go through point by point. Delete the outline formatting (indentations and letter/numeral designations) and start to put your sentences together into paragraphs. You may need to add transition phrases or even extra sentences to make sure your prose flows naturally. You might also find that even though your ideas seemed to make sense in the outline, you need to add still more details here or change the order of your ideas for everything to fully make sense. You may even find that you have too many ideas or that some ideas are not really all that relevant and need to be cut. That is perfectly normal. The outline is a plan to help you get organized, but you always have the flexibility to change it to fit the needs of your assignment.