Number Words to 20
Every number has a word name. Learning to read and write number words — like "seven" and "twelve" — helps us understand numbers in everyday reading and writing.
What You Need to Know
Every number has a word name. Learning to read and write number words — like "seven" and "twelve" — helps us understand numbers in everyday reading and writing.
Key Concept Diagram
Numbers 1-10: one, two, three, four, five, six, seven, eight, nine, ten
Numbers 11-20: eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty
Teen numbers: thirteen, fourteen, fifteen... (13-19) end in "teen"
We see number words in books, on price tags, and in everyday writing
Key Vocabulary
numeral
The digit symbol for a number (e.g. 7 is the numeral for seven)
number word
The written form of a number (e.g. "seven")
teen number
Numbers from 13 to 19 — they end in "teen"
twenty
The number word for 20 — two groups of ten
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
What is the number word for 8?
Question 2
Which numeral matches the word "thirteen"?
Question 3
What is the number word for 20?
Question 4
Which number word matches 16?
Question 5
How do you write the number 15 in words?
Key Concepts Summary
- ●Numbers 1-10: one, two, three, four, five, six, seven, eight, nine, ten
- ●Numbers 11-20: eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty
- ●Teen numbers: thirteen, fourteen, fifteen... (13-19) end in "teen"
- ●We see number words in books, on price tags, and in everyday writing