HSK 2 grammar · pattern
多
多 + adjective — how…?
Pattern
+ + +
( ) can be left out · other words may come before, between and after
How it works
多 before an adjective asks "how ...?" — how big, how old, how far. 你多大 asks someone's age.
Examples
你多大?
Nǐ duō dà?
How old are you?
这条路有多长?
Zhè tiáo lù yǒu duō cháng?
How long is this road?
Related

See it in a story
In the app, 多 is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.