International assessments show that U.S. students tend to do worse in mathematics as they get older. The Trends in International Math and
divide. Examples: … Knowing that 8 x 5 = 40 and 8 x 2 = 16, one can find 8 x 7 as 8 x (5 + 2) = (8 x 5) + (8 x 2) = 40 + 16 = 56. (Distributive property.) Statements like these are no coincidence, because the mathematics standards of high performing East Asian countries were an important source of evidence in developing the Common Core. (Se