Adding and subtracting while making numbers quiz. This is a trivia quiz online in which kids are expected to do addition and subtraction problems and find the corresponding number that results from either of both operations. This topic falls under mixed operations studied by kids in 1st, 2nd, 3rd and 4th grades. Review with this test and get instant feedback online. Have fun learning and keep trying; multiple attempts are allowed and this test is free and available at any time online.