Number to Words Interactive Worksheet (6-14 Digits)

Introduction

This worksheet helps learners master converting large numbers between numerals and words using the International Numeration System. It provides structured, interactive practice for numbers ranging from 6 to 14 digits.

What Is Number-to-Words Conversion

Number-to-words conversion is the process of expressing numerical values in written word form, and vice versa.

This skill is essential for understanding large numbers, correct comma placement, formal writing, and real-world applications such as reading financial figures and official documents.

Numeration System Used

This worksheet follows the International Numeration System, which groups digits in sets of three and uses terms such as thousand, million, billion, and trillion.

Practicing within this system helps learners read, write, and interpret large numbers accurately and confidently.

Types of Questions Included

This worksheet features multiple interactive question formats to strengthen both recognition and expression of large numbers.

1. Words to Numerals

In this question type, learners convert written number words into their numerical form.

Example:

• Six Hundred Fifty Three Million Four Hundred Twenty One Thousand
• 653,421,000

This exercise builds accuracy in decoding number names and understanding place-value hierarchy.

2. Numerals to Commas and Words

Learners are given a large number in plain numeric form.

They must complete two tasks:

• Rewrite the number using correct comma placement
• Convert the number into its full word form

Example:

• 531681387894143
• 531,681,387,894,143
• Five Hundred Thirty One Trillion Six Hundred Eighty One Billion Three Hundred Eighty Seven Million Eight Hundred Ninety Four Thousand One Hundred Forty Three

3. Fill-in-the-Blanks Word Formation

In this interactive format, learners construct the word form of a number step by step.

Each part of the number name appears as a separate blank, requiring precise placement of every word.

This approach reinforces structure, sequencing, and correct terminology for large numbers.

Practice Range

The worksheet covers numbers with 6 to 14 digits, spanning values from millions up to trillions.

This range ensures learners gain confidence handling both commonly used and very large numbers.

Solution Support

Each problem includes a Solution link.

Clicking the link opens the Number to Words Converter and Reference, which displays the complete and correct conversion in both ways for that exact number.

Skills Developed Through This Worksheet

• Accurate reading of large numbers
• Correct comma placement using the International system
• Fluent conversion between numerals and words
• Improved understanding of place value and number structure

Who This Worksheet Is For

This worksheet is suitable for middle school and high school students, educators, and learners seeking to strengthen large-number literacy.

It works well for classroom instruction, homeschooling, exam preparation, and self-study.

Online, Interactive, and Self-Correcting

This is a fully online, interactive worksheet that runs in the browser.

Learners receive instant feedback on each response, allowing quick correction and reinforcement. No printing or downloading is required.