What is 3,482 to two significant figures?

3482 to two significant figures.

When 3,482 is rounded to two significant figures, it will become 3,500.
To find significant figures for digit or tens digit we need to apply the following rules:

• If the last two digits are 50 or greater than 50,then add +1 to the hundredth digit and remove last two digits. 

• If the last two digits are less than 50 then no change in hundred th digit,last two numbers to be removed.

So in 3,482: last two digits are 82 which is less than 50.
There, in this case, we will add +1 to the hundredth digit (4) and the hundredth digit will become 4+1= 5.
So, the number is 3500.

The significant figures (also known as the significant digits) of a number are digits that carry meaning contributing to its measurement resolution.