12.2.1 A By the end of twelfth grade, students will solve theoretical and applied problems using numbers in equivalent forms, radicals, exponents, scientific notation, absolute values, fractions, decimals, and percents, ratios and proportions, order of operations, and properties of real numbers. Tools This quiz requires you to log in. Please enter your Quia username and password. Quiz Log In Username: Password:   Quiz created by: Sandra Meyer This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.