TOPIC
MY PROGRESS
Pug Score
0%
Best Streak
0 in a row
Study Points
+0
Overview
Practice
Watch
Read
Next Steps
Get Started
Get unlimited access to all videos, practice problems, and study tools.
Unlimited practice
Full videos
Back to Menu
Topic Progress
Pug Score
0%
Videos Watched
0/0
Best Practice
No score
Read
Not viewed
Best Streak
0 in a row
Study Points
+0
Overview
Practice
Watch
Read
Next Steps
Overview
1st Grade Math
9. 1.NBT.A.1
9.6 Writing numbers as words
Writing Numbers as Words
Discover how to turn digits like 7, 15, and 47 into their word forms, such as seven, fifteen, and forty-seven, using simple place value rules.
What You'll Learn
Recognize the word names for the numbers one through twelve as fixed words to memorize.
Identify the teen number pattern, where thirteen through nineteen end in "teen".
Apply the tens pattern, where twenty, thirty, forty, and similar words name each group of ten.
Combine a tens word and a ones word with a hyphen to write two-digit numbers such as forty-seven.
Compare digit form and word form of the same number to check that a written number makes sense.
Avoid common mix-ups, such as confusing thirteen with thirty or thirty with thirteen.
What You'll Practice
1
Converting single-digit and teen numbers to word form
2
Writing numbers up to 20 as their complete word names
3
Identifying correct spelling and format of number words
Why This Matters
Writing numbers as words is essential for everyday tasks like writing checks, filling out forms, and creating professional documents. This foundational skill also strengthens your understanding of number sense and prepares you for expressing larger numbers in words.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Number Words
Number Sense
Vocabulary
Number Names
Written Numbers
OH Curriculum Aligned