4th Grade Math--ADDING & SUBTRACTING WHOLE NUMBERS Skills Checks--NBT 4 Assess with ease with these TWO skills checks that are 10 questions each. Common Core-aligned and easy to use for tracking towards state testing success! Use these skills checks for a variety of classroom needs--pre-tests, post-tests, quizzes, unit tests, practice tests, or even independent work! Know how your students are doing in relation to the standards without spending hours creating. Stop creating and start printing