Jumlah itu betul.

Malay often leaves out the verb to be in simple statements.

So:

• Jumlah itu betul literally looks like amount that correct
• but it naturally means That amount is correct

This is very normal in Malay. In many noun/adjective sentences, you do not need a separate word for is/are.

Compare:

• Dia guru = He/She is a teacher
• Rumah itu besar = That house is big
• Jumlah itu betul = That amount is correct

Here, itu means that.

In Malay, itu often comes after the noun, not before it like in English.

So:

• jumlah itu = that amount
• literally: amount that

This is one of the most common word-order differences between English and Malay.

Compare:

• buku itu = that book
• orang itu = that person
• jumlah itu = that amount

That is just the normal Malay pattern for demonstratives like ini and itu.

Malay uses:

• jumlah ini = this amount
• jumlah itu = that amount

So unlike English:

• English: that amount
• Malay: amount that

This is a basic structure you will see everywhere in Malay.

Jumlah usually means amount, total, or sum, depending on context.

Possible translations include:

• amount
• total
• sum

So Jumlah itu betul could mean things like:

• That amount is correct
• That total is correct
• That sum is correct

The best English translation depends on the situation, such as money, numbers, or calculations.

Betul generally means correct or right.

It is very close in meaning to benar, and in many contexts they overlap.

For example:

• Jawapan itu betul = That answer is correct
• Jawapan itu benar = also possible, though the nuance may be slightly different depending on context

A useful rough guide:

• betul often sounds like correct/right
• benar can also mean true/correct, and sometimes sounds a bit more formal or tied to truth

In your sentence, betul is very natural.

Yes, it is natural and correct.

It sounds like something you might say when checking:

• a bill
• a calculation
• an invoice
• a quantity
• a reported total

For example:

• Someone asks whether the total on a receipt is right.
• You check it and say: Jumlah itu betul.

It is short, clear, and normal.

Usually, no. Jumlah itu betul is the natural structure.

Why?

Because itu here is attached to jumlah as that amount:

• jumlah itu = that amount

Then betul describes it:

• jumlah itu betul = that amount is correct

If you say Itu jumlah betul, it does not sound like the normal way to express this meaning.

A simple approximate pronunciation is:

JUM-lah EE-too beh-TOOL

A few notes:

• j in jumlah sounds like the j in jam
• u is usually like oo in food, but shorter
• t is a clean t, not heavily aspirated like in English
• betul has stress roughly on the second syllable in careful pronunciation, though Malay stress is generally not as strong or as important as in English

Yes, depending on the nuance.

Possible alternatives include:

• Jumlah itu benar = That amount is true/correct
• Jumlah itu tepat = That amount is exact/accurate
• Jumlah itu sah = That amount is valid/officially valid in certain contexts

But betul is one of the most straightforward and common choices for correct.

You would usually say:

• Jumlah itu tidak betul = That amount is not correct

Malay commonly uses tidak to negate adjectives and verbs.

So:

• betul = correct
• tidak betul = not correct

This is the most direct negative form of the sentence.

Yes, Jumlahnya betul is also possible.

Here, -nya can mean something like its/the depending on context.

So:

• Jumlah itu betul = That amount is correct
• Jumlahnya betul = The amount is correct / Its amount is correct, depending on context

The two are similar, but not identical:

• jumlah itu points to a specific amount: that amount
• jumlahnya refers to the amount associated with something already being discussed

It is neutral and works well in both everyday and fairly formal situations.

It is not slang, and it is not overly stiff either.

So you could use it in:

• conversation
• office communication
• checking paperwork
• business contexts

If you want to sound slightly more formal or precise, context may matter more than the sentence itself. But Jumlah itu betul is perfectly acceptable as it is.