SaiBook.us Subtraction

Example

Title: Subtraction

Grade: 3-a Lesson: S2-L4

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

Examples:

Subtract 1100 - 100

Step 1a

Subtract 1100 - 100

To begin subtract from the units place.

$1a$

Explanation: Arrange the numbers accourding to their place values.

Step 1b

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

$1b$

Explanation: Now subtract the digits from one’s place 0 - 0 and the difference is 0, write this number under the ones digit.

Step 1c

Subtract the digits in the tens column 0 , 0.

$1c$

Explanation: Now subtract the digit in ten’s place.so it will be 0 - 0 = 0. Write 0 in ten’s column.

Step 1d

Subtract the digits in the hundred’s column 1 , 0.

$1d$

Explanation: Now subtract the digit in hundred’s place. so it will be 1 - 0 = 1. Write 1 in hundred’s column.

Step 1e

Subtract the digits in the thousand’s column 1 - 0. Here the difference is 1. Therefore, the difference is 1100 - 100 = 1000.

$1e$

Explanation: Now subtract the digit in thousand’s place. so it will be 1 - 0 = 1. Write 1 in thousand’s column. Hence, 1100 - 100 = 1000.