SaiBook.us Division

Lesson Example Discussion Quiz: Class Homework

Example

Title: Division

Grade: 2-a Lesson: S3-L2

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

Examples:

Step 1a

Divide 180 by 4

Draw the division symbol ⟌ and write divisor (4) on its left side and dividend (180) enclosed under this symbol.

$1a$

Explanation: Arrange the numbers in division form:

Step 1b

Since the first digit of the dividend is less than the divisor (1<4), bring down the next digit of the dividend.
New dividend is 18.18 > 4 but 18 is not divisible by 4, so we look for the number just less than 18 in the table of 4. We know that 4 x 4= 16 which is less than 18.
Write quotient 4 and subtract 18 - 16 = 2.

$1b$

Explanation: Here, the first digit of the dividend is 1, but 1 < 4 put down the next digit of the dividend and place it beside 1. New dividend is 14.
18 is not divisible by 4, so we look for the number just less than 18. We know that 4 x 4= 16 which is less than 18.
Write quotient 4 and subtract 18 - 16 = 2.

Step 1c

Now 2 < 4 bring down the next digit of the dividend and place it beside 0.
So, we have 20 as the new dividend. 20 is divisible by 4,We know that 4 x 5 =20 so, we go for it.
Write quotient 5 and subtract 20 - 20 = 0.

Therefore quotient = 45 and remainder = 0.

$1c$

Explanation: Now 2 < 4 bring down the next digit of the dividend and place it beside 2 to make it 20.
Write quotient 5 and subtract 20 - 20 = 0

Therefore quotient = 45 and remainder = 0.