Question

How many natural numbers between 100 and 500 have a hundreds digit that is a 3 and a ones digit that is a 5?

Answer 1

10

Explanation:

Two of the three digits of the 3-digit number have been specified. The remaining digit may take on any of 10 values. There are 10 such numbers.

305, 315, 325, 335, 345

355, 365, 375, 385, 395