SaiBook.us Subtraction

Lesson Example Discussion Quiz: Class Homework

Example

Title: Subtraction

Grade: 3-a Lesson: S3-L2

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

Examples:

Subtract 1669 - 520

Step 1a

Subtract 1669 - 520

Write the numbers below the other as per the places of the digits i.e.., 1669 - 520.

$1a$

Explanation: Arrange the numbers accourding to their place values.

Step 1b

Start with the digits in ones place i.e., 9 - 0 = 9.

$1b$

Explanation: Now subtract the digits from one’s place 9 - 0 and the difference is 9, below the number.

Step 1c

Subtract the digits in the tens column 6 - 2. Here the difference is 4 Now we subtract Ten’s place i.e., (6 - 2 = 4).

$1c$

Explanation: Now subtract the digit in ten’s place. so it will be 6 - 2 = 4. Write 4 in ten’s column.

Step 1d

Subtract the digits in the hundredth’s column 6 - 5.

$1d$

Explanation: Now subtract the digit in hundred’s place. so it will be 6 - 5 = 1. Write 1 in hundred’s column.

Step 1e

Subtract the digits in the thousand’s column 1 - 0. Here the difference is 1. Now we subtract thousand’s place i.e., (1 - 0 = 1). Therefore, the difference is 1669 - 520 = 1149.

$1e$

Explanation: Now subtract the digit in thousand’s place. so it will be 1 - 0 = 1. Write 1 in thousand’s column. Hence, 1669- 520 = 1149.