DECREASE

Decrease

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.

Quick Summary

Decrease means to make something smaller.
Subtraction is used to calculate the amount of decrease.

\[ FinalValue = InitialValue - Reduction \]

🍎 Teacher Insights

Use real-world examples like sharing snacks to demonstrate decrease.

🎓 Prerequisites

Basic Subtraction
Number Recognition

Check Your Knowledge

Q1: John had 76 pounds and lost 2 pounds a month for 3 months. What is his final weight?

A. 70 pounds B. 72 pounds C. 74 pounds D. 78 pounds

Q2: Andrew's weight decreased from 72.2 pounds to 70.4 pounds. How much weight did Andrew lose?

A. 1.8 pounds B. 18 pounds C. 0.18 pounds D. 142.6 pounds

Frequently Asked Questions

Q: What does it mean to decrease?
A: To decrease means to become smaller or less in size, quantity, or intensity.