This adding and subtracting 10 worksheet help students practice mental math and number sense by adding or subtracting 10 from two-digit numbers. Designed for 1st grade and 2nd grade math, these worksheets build confidence in place value understanding, math fluency, and addition and subtraction skills. Ideal for classroom instruction, math centers, independent practice, homework, or intervention, this resource supports students in mastering adding and subtracting multiples of ten.