Listening & Vocabulary

Numbers 1–20 Reference

All numbers with pronunciation guides, patterns, and the "-teen" rule explained.

🔢 Numbers 1–10 / Números 1–10

#	English	Pronunciation	Español
1	One	/wʌn/	Uno
2	Two	/tuː/	Dos
3	Three	/θriː/	Tres
4	Four	/fɔːr/	Cuatro
5	Five	/faɪv/	Cinco
6	Six	/sɪks/	Seis
7	Seven	/ˈsevən/	Siete
8	Eight	/eɪt/	Ocho
9	Nine	/naɪn/	Nueve
10	Ten	/ten/	Diez

🔢 Numbers 11–20 / Números 11–20

#	English	Pronunciation	Español	Pattern
11	Eleven	/ɪˈlevən/	Once	Irregular
12	Twelve	/twelv/	Doce	Irregular
13	Thirteen	/θɜːrˈtiːn/	Trece	Three + teen
14	Fourteen	/fɔːrˈtiːn/	Catorce	Four + teen
15	Fifteen	/fɪfˈtiːn/	Quince	Five + teen*
16	Sixteen	/sɪksˈtiːn/	Dieciséis	Six + teen
17	Seventeen	/sevənˈtiːn/	Diecisiete	Seven + teen
18	Eighteen	/eɪˈtiːn/	Dieciocho	Eight + teen
19	Nineteen	/naɪnˈtiːn/	Diecinueve	Nine + teen
20	Twenty	/ˈtwentɪ/	Veinte	New word

💡 The "-teen" Pattern

📚

Rule: Numbers 13–19 follow the pattern: base number + "-teen"
Three → Thirteen • Four → Fourteen • Six → Sixteen

Watch out: 11 (eleven) and 12 (twelve) are irregular — they don't follow the "-teen" pattern!
Also: 13 = "thir-teen" (not "three-teen") • 15 = "fif-teen" (not "five-teen")

🗨 Useful Number Phrases

English	Español	Example
How many?	¿Cuántos?	How many students? — Ten.
How old are you?	¿Cuántos años tienes?	I'm twenty. (NOT "I have twenty years")
What's your phone number?	¿Cuál es tu número de teléfono?	It's 555-0123.

🇪🇸

Tip for Spanish Speakers: English says "I am twenty years old" but Spanish says "Tengo veinte años" (I have twenty years). Don't say "I have 20 years" in English! Also, "three" has the /θ/ sound (tongue between teeth) — practice this sound.