SUBTRACTION

Subtraction

Definition Of Subtraction

Subtraction is a mathematical operation that tells us the difference between two numbers.

In other words, subtraction is the process of finding how many are left when some are taken away.

Subtraction is the opposite or inverse operation of addition.

Video Examples: Basic Subtraction Math Lesson - Learn to Subtract

Example of Subtraction

The following are simple subtraction problems.
5 - 5 = 0
2 - 4 = - 2
6 - 5 = 1
10 - 6 = 4
5.3 - 1.1 = 4.2

Solved Example on Subtraction

Ques: Edward had 7 chocolates with him. He gave 5 chocolates to his younger brother. How many chocolates is he left with now?

Choices:

A. 2
B. 7
C. 5
D. 12
Correct Answer: A

Solution:

Step 1: Total chocolates - the chocolates given to his brother = the remaining chocolates with him
Step 2: 7 - 5 = 2 [Subtract 5 from 7.]
Step 3: Edward is left with 2 chocolates now.

Quick Summary

Subtraction finds the difference between two numbers.
Subtraction is the inverse of addition.
Subtraction tells you how many are left after taking away.

\[ a - b = c \]

🍎 Teacher Insights

Use manipulatives like counters or blocks to help students visualize the concept of taking away. Relate subtraction to real-world scenarios like sharing toys or eating snacks.

🎓 Prerequisites

Counting
Number Recognition

Check Your Knowledge

Q1: What is 5 - 2?

A. 2 B. 3 C. 7 D. 10

Q2: What is 10 - 6?

A. 16 B. 3 C. 4 D. 6

Frequently Asked Questions

Q: What does it mean to subtract?
A: To subtract means to take away a quantity from another.

Q: Is subtraction the same as addition?
A: No, subtraction is the opposite operation of addition.