Addition: 4 numbers 3-digit

Addition – 4 Numbers, 3-Digit

This visually engaging worksheet is designed to help early learners and growing mathematicians expand their foundational math abilities through 3-digit number addition involving four numbers. With a clean layout and easy-to-follow instructions, it’s perfect for classroom use, at-home practice, or extra learning opportunities.

Purpose

This worksheet focuses on:

• Building skills for adding four 3-digit numbers.
• Enhancing number recognition, comprehension, and familiarity with larger numbers.
• Strengthening mental math, logical reasoning, and fine motor skills through writing and solving equations.

Activities

• Observe the Addition Problem: Each problem presents four 3-digit numbers written in vertical format.
• Write the Equation: Write the complete addition equation (e.g., 145 + 378 + 292 + 109).
• Find the Sum: Solve the problem and write the sum in the provided answer box.
• Repeat for Mastery: Complete multiple problems to build speed, confidence, and accuracy.

Worksheet Specifications

• Page Size: 8.5″ x 11″ (Letter Size)
• Orientation: Portrait
• Content: 20 problems featuring 3-digit numbers arranged vertically with four addends.
• Solution Section: Includes a complete answer key at the bottom of the page.

Materials Needed

• Pencil or marker
• Printed worksheet (from the provided PDF)

Instructions for Use

Part 1 – Visual Practice:

1. Read the four numbers in each problem.
2. Write the complete equation (e.g., 145 + 378 + 292 + 109 = ___).
3. Calculate the sum and fill in the answer.

Part 2 – Repetition:

1. Continue practicing each problem to reinforce concepts and improve fluency.

Self-Check:

• Use the provided answer key to check and correct answers, ensuring accuracy and understanding.

This worksheet promotes independent learning, boosts confidence, and makes the process of adding multiple 3-digit numbers fun and engaging. Through repeated practice, students build essential addition skills and become confident working with more complex problems.