32 challenging cards that can be for math centers, early finishers, independent work, morning work, distance learning and more. These cards challenge students to use place value and rounding strategies to solve and find the answer. These self check and give instant feedback to students.The concepts that are covered with these cards include•Rounding to the tens, hundreds, thousands and ten-thousands place•Place Value•Adding up to 4 digit numbers•Subtracting up to 4 digit numbers•Logically thinkin