SaiBook.us Subtraction

Lesson Example Discussion Quiz: Class Homework

Example

Title: Subtraction

Grade: 2-a Lesson: S3-L3

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

Examples:

Subtract 565 - 72

Step 1a

Subtract 565 - 72

Start subtracting from units place

$1a$

Explanation: Arrange the numbers in order where 2 and 5 are in the units place. Subtracting 2 from 5 gives 3.

Step 1b

Subtracting the digits from tens place.

$1b$

Explanation: 6 and 7 are in the tens place. We cannot subtract 7 from 6, so we need to borrow 1 from the hundreds place to make 16.

Step 1c

Now subtracting tens place values.

$1c$

Explanation: The value of 1 becomes 10 when it moves from the hundreds place to the tens place. Adding 6 to 10 gives 16. Subtracting 7 from 16 gives 9.

Step 1d

After borrowing 1 from the hundred’s place, subtract 0 from the tens place leaving 4 as the result.

$1d$

Explanation: Subtracting 72 from 565. i.e., 593.