Mixed Addition and Subtraction (3 digits) Worksheets

Learning to add and subtract three-digit numbers is an important part of the elementary school curriculum. Students learn to work with hundreds, tens, and ones, understand the structure of numbers, and recognize the connections between place values. This helps them progress from simple to more complex calculations.

The most challenging aspect of this topic is adding and subtracting three-digit numbers with carrying. Students must understand that operations are performed from right to left and learn how to «carry» or «transfer» to the next place value.

Adding and subtracting three-digit numbers in columns helps children organize their calculations, learn to correctly place numbers, and perform operations step by step.

These skills boost students' confidence in math, prepare them to work with multi-digit numbers, and lay a solid foundation for studying more complex topics in higher grades.