French Phrase
Je crois qu'il y a une erreur sur l'addition.
Meaning
I think there is a mistake on the bill (or on the total). The speaker is politely pointing out a possible error, often after receiving a receipt or a restaurant check.
When to use
Use this sentence when you want to question a total you’ve been given—whether it’s a restaurant check, a shop receipt, or a calculated sum on a document. It’s a courteous way to flag a discrepancy without sounding accusatory.
✦Grammar Breakdown
Jecroisqueilyauneerreursurl'addition.
Croire (present)
‘Croire’ is a regular -ir verb; in the first‑person singular present it becomes ‘je crois’.
Que (subordinating conjunction)
‘Que’ introduces a subordinate clause, linking the belief to the statement that follows.
Il y a
Fixed expression meaning ‘there is/are’; literally ‘it there has’. Used for existence.
Indefinite article ‘une’
Used with feminine singular nouns like ‘erreur’ to indicate ‘a/an’.
Sur vs. Dans
‘Sur’ = ‘on/about’; with ‘l’addition’ it stresses the item (the bill) rather than the process of adding.
L’addition
Elision of the article ‘la’ before a vowel; in a restaurant it means ‘the bill’, in math it means ‘addition’.
🗨In Conversation
Je crois qu'il y a une erreur sur l'addition.
I think there's a mistake on the bill.
Ah, désolé ! Laissez‑moi vérifier cela tout de suite.
Ah, sorry! Let me check that right away.
✕Common Mistakes
Je crois que il y a une erreur sur l'addition.
Do not separate the contraction; it must stay attached to ‘il’ after ‘que’. Write ‘qu’il’ not ‘que il’.
Je crois qu'il y a une erreur dans l'addition.
Learners often use ‘dans l'addition’, which is less natural when referring to a bill. ‘Sur’ is preferred.
Je crois (pronounced ‘kroi’)...
Pronounce the ‘s’ as a /z/ sound in liaison: /kʁwa/. Saying /kʁɔɪs/ sounds English.
↔Alternatives
Je pense qu'il y a une erreur dans l'addition.
I think there's a mistake in the total.
Il me semble qu'il y a une faute sur le total.
It seems to me there's a fault on the total.
Excusez‑moi, mais il y a une incohérence dans le montant.
Excuse me, but there's an inconsistency in the amount.
Cultural Tip
In French, softening phrases with ‘je crois’ or ‘je pense’ is considered polite, especially in service contexts. ‘L'addition’ is the standard word for a restaurant check; avoid the literal English‑style ‘la facture’ unless you’re dealing with an invoice. Also, keep the tone courteous—French service staff appreciate a respectful approach.