SaiBook.us Subtraction

Example

Title: Subtraction

Grade: 1-a Lesson: S1-L2

Explanation: The best way to understand subtraction is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Subtraction 18 - 3

Step 1a

Subtraction 18 from 3

Arrange the numbers vertically. Subtract one’s place digits 8 – 3 = 5. Write 5 in one’s column.

$1a$

Explanation: Start subtracting with the digit at one’s place i.e., 8 - 3 = 5 write 5 in one’s column.

Step 1b

Subtract ten’s place digits 1 - 0 = 1 write 1 in ten’s column.

$1b$

Explanation: Move to the ten’s place i.e., 1 - 0 = 1. Write 1 in the ten’s place.

Step 1c

Thus 18 - 3 = 15.

$1c$

Explanation: Therefore, the difference between the two given numbers is: 18 - 3 = 15.