I made these up, so I hope they make sense to you. 
1. A leaf is 9 centimeters long. 
2. The mass of my computer is 1.5 kilograms. 
3. My sister is 4 feet tall. 
4. My baby brother weighs only 5 pounds. 
5. The length of that door is 2 feet.
Basically, "quantitative" means using numbers to describe something. If you need to know, qualitative means using words.