How to Spell Mathematics in Spanish: Guide to Matematicas

The Spanish word for “mathematics” is matemáticas — spelled m-a-t-e-m-á-t-i-c-a-s, with a written accent (tilde) on the second “a.” If you are looking up how to spell mathematics in Spanish, that single accented form is the standard answer, and it is the word you will see on school schedules, textbooks, and university course lists across the Spanish-speaking world. This guide covers the exact spelling, the accent rule behind it, when the singular form appears, and the mistakes that trip up learners most often.

The Spanish Word for Mathematics

The direct translation of the English noun “mathematics” is matemáticas. It is a feminine plural noun, and it is the term used in everyday and academic contexts alike.

For example, a class schedule might list “Matemáticas — 9:00 a.m.” the same way an English schedule lists “Mathematics.” A student describing their major might say “Estudio matemáticas” (“I study mathematics”).

The word traces back through Latin mathematica to the Greek mathēmatikē. The Real Academia Española, the institution that publishes the authoritative Diccionario de la lengua española, lists matemáticas as the standard headword, with matemática also recorded as a valid singular form. There is no alternative spelling in modern standard Spanish. The closest informal parallel to English “math” is the shortened mates, common in casual speech in Spain.

Correct Spelling and Accent

The correct spelling is matemáticas, and the accent mark on the second “a” is not optional decoration — it is required.

Why the accent is there

Spanish uses written accents to mark where the stress falls when a word breaks the default pattern. Matemáticas is stressed on the syllable -má- (the third-to-last syllable). Words stressed on the third-to-last syllable — called palabras esdrújulas — always carry a written accent in Spanish, with no exceptions.

That single rule explains everything:

• matemáticas — stressed on -má-, esdrújula, accent required
• matemática — same stress pattern, accent still required
• matematicas — no accent, which signals the wrong stress and is simply misspelled

The Instituto Cervantes, which oversees Spanish language teaching and certification worldwide, teaches this esdrújula rule as a core spelling principle at the beginner level, precisely because it accounts for such a large share of accent marks.

Singular vs. Plural Usage

Spanish normally uses the plural matemáticas when referring to the field or school subject as a whole. This is the key difference from English. Where English says “Mathematics is my favorite subject,” Spanish says “Las matemáticas son mi asignatura favorita” — plural noun, plural verb. The subject name is treated as a plural entity, much like ciencias (“sciences”) or letras (“letters/humanities”).

When the singular appears

The singular form shows up in a few specific situations:

• As an adjective meaning “mathematical”: un problema matemático, una fórmula matemática. Here it agrees in gender and number with the noun it modifies.
• Referring to a single mathematical discipline or a female practitioner: la matemática aplicada can name one branch, and una matemática can mean “a female mathematician.”
• In some regional or older usage for the school subject: you may occasionally encounter la matemática as the subject name, but matemáticas is far more common in contemporary standard Spanish.

For learners, the safe default is plural matemáticas for the subject, and singular matemático/matemática for the adjective. A quick worked example: “Mi hermana es matemática y da clases de matemáticas” — “My sister is a mathematician and teaches mathematics classes.” Note the singular for the person and the plural for the subject in the same sentence.

Common Spelling Mistakes

Most errors with this word come down to one thing: the missing accent.

Dropping the accent

Writing “matematicas” without the tilde is the single most frequent error. It is understandable, since English keyboards and autocorrect often strip accents, but in Spanish it is a genuine misspelling — it changes the implied stress and looks wrong to any native reader or examiner. The fix is simple: remember the esdrújula rule. If a word is stressed on the third-to-last syllable, it gets an accent.

Other frequent errors

• “mathematicas” — carrying over the English “th” spelling. Spanish uses “t,” never “th.”
• Doubling letters: “mathemáticas” or “matemáthicas” — the Spanish word has a single “t.”
• Putting the accent on the wrong vowel: “matématicas” or “matematicás.” The accent belongs only on the second “a.”
• Capitalizing casually: Spanish does not capitalize subject names the way English sometimes does. Write matemáticas, not Matemáticas, unless it begins a sentence or is a title.

Practical tip for typing: on most phones, long-press the “a” to insert “á.” On Windows, Alt + 0225 produces “á”; on Mac, hold Option and press “e,” then “a.”

Key Takeaways

• The Spanish word for mathematics is matemáticas, spelled with an accent on the second “a.”
• The accent is mandatory because matemáticas is a palabra esdrújula (stressed on the third-to-last syllable).
• Spanish normally uses the plural matemáticas for the school subject or field, and the singular matemática as an adjective or for a single mathematician.
• The most common mistake is dropping the accent and writing “matematicas” — always keep the tilde.
• Avoid English-influenced spellings like “mathematicas,” and place the accent only on the second “a.”