SaiBook.us Subtraction

Example

Title: Subtraction

Grade: 3-a Lesson: S1-L1

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

Examples:

Subtract 147 - 66

Step 1a

Subtract 147 - 66

Arrange the numbers vertically. Subtract ones 7 - 6 = 1. Write 1 in ones column.

$1a$

Explanation: Start with the digit at ones place i.e., 7 - 6 = 1. Write 1 in ones column.

Step 1b

Subtract tens and write in the tens place, 4 - 5. We have to take the borrowing from hundreds place.Now the digit 14 - 6 = 8 write 8 in tens column.

$1b$

Explanation: Move to the tens place i.e., 14 - 6 = 8. Write 8 in the tens place.

Step 1c

Subtract the numbers under the hundreds column 0 - 0 = 0. Write 0 in the hundreds column.

$1c$

Explanation: Now subtract hundreds column i.e., 0 - 0 = 0 and write 0 in the hundreds column.

Step 1d

Hence, the difference between the given numbers is 81.

$1d$

Explanation: Thus 147 - 66 = 81.