What is additicon?

What are the abcd of life? Find the number of factors that the number 625 has? What are the multiples of 8 starting with the number 7? Do all shapes have edges? What is the roman figure for 2001? Which is bigger 2.43 or 2.4? How do you do a fraction? Which one is more precise 19 mm or 2 cm? Where is negative one and three eights on the number line? How many feet is equal to 17 feet 9 inches? How many pavers would you need if the pavers are 16 inches by 16 inche4s and you need to cover a patio area that is 10 feet by 12 feet? What is the independent variable of a flower? How will you write using the venn diagram the union of set a(1234) and the intersection of set b(10111213) and set c(1213)? What is the product of 7 and 13.45? What is the slope of a line parallel to a line with the slope of negative two thirds? What is the value in cents of nickels? What are some objects that are about half than a meter? How many years is 1 billion minutes? What is 6 out of 8 as a decimal? What is the average IQ for a 37 year old man?