JLPT N5 · Grammar
Highlighted parts are the fixed pieces of the pattern; the rest changes with the word you attach it to.
## What it means Both いくつ and なん+counter ask "how many." いくつ is the general, all-purpose version, useful when you don't need a specific counter. なん attaches to a specific counter to ask about that exact type of thing, like なんまい (how many flat things) or なんだい (how many machines).
## When to use it いくつ can stand on its own in a sentence, replacing the whole "number + counter" phrase, and it's also used to casually ask a child's age. なん combines directly with a counter: なん+人 becomes なんにん, なん+枚 becomes なんまい, なん+台 becomes なんだい, なん+冊 becomes なんさつ.
## Don't confuse it with いくつ (how many, or how old) looks similar to いくら (how much money), but they ask completely different questions. いくつ is about a count, いくら is about a price.
りんごはいくつありますか。
How many apples are there?
兄弟は何人ですか。
How many siblings do you have?
紙は何枚要りますか。
How many sheets of paper do you need?
駐車場に車が何台ありますか。
How many cars are in the parking lot?
本を何冊買いますか。
How many books are you going to buy?
お子さんはいくつですか。
How old is your child?
箱の中にいくつありますか。
How many are there inside the box?
鉛筆は何本ありますか。
How many pencils are there?