Definition Of Decrease

Decrease is the process of reducing something gradually.

Example Of Decrease

John's weight was 76 pounds. He lost 2 pounds of weight every month for three consecutive months. After 3 months, his weight decreased to 70 pounds (as 76 - 3 × 2 = 70).

Video Examples: Percent Increase - MathHelp.com - Pre Algebra Help
 

Solved Example on Decrease

Ques: Andrew's weight decreased from 72.2 pounds to 70.4 pounds. How much weight did Andrew lose?

Choices:

A. 1.8 pounds
B. 18 pounds
C. 0.18 pounds
D. 142.6 pounds
Correct Answer: A

Solution:

Step 1: The original weight of Andrew was 72.2 pounds. 
Step 2: His weight decreased to 70.4 pounds.
Step 3: The weight Andrew lost = original weight - present weight
= 72.2 - 70.4 = 1.8 [Substitute the weights.]
Step 4: Andrew lost 1.8 pounds.

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