3-Digit Top Line Addition

Worksheet Description

This worksheet is a collection of arithmetic problems, specifically focusing on addition. Each problem requires the student to add a two- or three-digit number to another of similar length. The problems are arranged vertically, which is typical for teaching students to add numbers column by column, starting with the units and progressing through tens, hundreds, and so on, carrying over as needed.

The worksheet aims to reinforce students’ understanding of basic addition and the concept of place value. It provides practice in carrying over, which is essential when the sum of a column exceeds nine. The vertical arrangement of numbers underscores the importance of aligning digits by their place value for accurate addition. Through consistent practice with such worksheets, students can develop greater numerical fluency and confidence in handling larger numbers in addition.