Odd on Both Sides

Problem #29
Deadline to submit the solution: February 28th, 2000

Q1: How many 3-digit numbers are there whose first digit is an odd number and the last digit is an odd number?

 

The Solution:

 

Name: Matt
Answer: 250
Solution:
50X5=250
State: U.S.A
Grade: 4th
Age: 9
School: Ramona Bang Elementa