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Number Words: Definition and Example | EDU.COM

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Number Words: Definition and Example | EDU.COMEDU.COMResourcesBlogGuidePodcastPlanBackHomesvg]:size-3.5">Math Glossarysvg]:size-3.5">Number WordsNumber Words: Definition and ExampleTable of ContentsDefinition of Number Words

Number words, also known as number names, are the alphabetical representation of numerical values. They provide a unique word form for each number, allowing us to express quantities in written language. For example, the number 111 is written as "one," 222 as "two," and 333 as "three." Number words follow specific patterns that help us construct names for larger values. Understanding these patterns allows us to express any number in its word form, which is essential for both mathematical communication and everyday language use.

There are different systems for expressing number words, including the standard cardinal system (one, two, three) and the ordinal system that indicates position or rank (first, second, third). In the international number system, numbers are organized into periods and groups such as ones, thousands, millions, billions, and so on. Each period contains three place values, and commas separate these groups when writing large numbers. The ordinal system uses specific suffixes (-st, -nd, -rd, -th) to indicate position, with special rules for numbers ending in 111, 222, or 333, except for 111111, 121212, and 131313, which use the -th suffix.

Examples of Number Words in Practice Example 1: Writing a Four-Digit Number in Words Problem:

Write the number 7,5757,5757,575 in words.

Step-by-step solution:

Step 1, identify the place values in the number 7,5757,5757,575:

777 is in the thousands place 555 is in the hundreds place 777 is in the tens place 555 is in the ones place

Step 2, expand the number according to place values: 7,575=7,000+500+70+57,575 = 7,000 + 500 + 70 + 57,575=7,000+500+70+5

Step 3, convert each part to its word form:

7,000→seventhousand7,000 → seven thousand7,000→seventhousand 500→fivehundred500 → five hundred500→fivehundred 70→seventy70 → seventy70→seventy 5→five5 → five5→five

Step 4, combine all parts to form the complete number word: 7,5757,5757,575 in word form is "seven thousand five hundred and seventy-five"

Example 2: Finding the Next Number Word in Sequence Problem:

What comes after the given number name: twenty-nine?

Step-by-step solution:

Step 1, convert the number name to its numerical form:

"Twenty-nine" = 292929

Step 2, find the next consecutive number by adding 111:

29+1=3029 + 1 = 3029+1=30

Step 3, convert this new number to its word form:

303030 in word form is "thirty"

Step 4, "thirty" comes after "twenty-nine" in the sequence of number words.

Example 3: Counting and Writing a Number in Words Problem:

Count the number of emoji in an image and write the number in words. Number words

Step-by-step solution:

Step 1, count the items in each group:

smile:5itemssmile: 5 itemssmile:5items wink:4itemswink: 4 itemswink:4items joy:3itemsjoy: 3 itemsjoy:3items kissing:2itemskissing: 2 itemskissing:2items yum:1itemyum: 1 itemyum:1item

Step 2, add all the counts to find the total:

5+4+3+2+1=155 + 4 + 3 + 2 + 1 = 155+4+3+2+1=15

Step 3, identify the word form of 151515:

151515 is written as "fifteen"

Step 4, express your answer:

The image contains fifteen (151515) emoji in total. Comments(9)BBeautyGuruMiaNovember 6, 2025This glossary def of number words is great! It's helped my students grasp number-word conversions way better. Thanks!

YYogiAriaNovember 4, 2025This glossary page on number words is great! I've used it to help my students grasp number-word conversions. It's really practical.

DDancerOliviaNovember 4, 2025This glossary def of number words is great! I've used it to help my students grasp number-word conversions. Super useful!

MCMs. CarterSeptember 18, 2025This glossary page on number words was a lifesaver! I used it to help my kids practice writing numbers as words, and the examples made it so simple to explain. Thanks for breaking it down so clearly!

MCMs. CarterSeptember 10, 2025I’ve been using the Number Words page to help my 2nd grader with spelling out numbers, and it’s been a game-changer! The examples are super clear, and it’s helped reinforce place value too.

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